Kidde smoke and carbon monoxide alarms

46 reports to CPSC, the latest made Oct 7, 2026. A report isn’t a recall.

Watch it to hear when CPSC publishes new reports about it. CPSC’s own search

Watch and the shortlist are kept with a free account, on every device. Your watch list. CPSC’s own search is on saferproducts.gov.

At a glance

From SaferProducts.gov, released Oct 28, 2026.

46reports to CPSC
Oct 7, 2026the latest report was made
Dec 2, 2020the earliest
45with the company’s comments

Brand: Kidde
Maker: UTC Fire & SecurityMakers, importers or sellers, as the reports name them
Product: Smoke and carbon monoxide alarmsBoth in oneCPSC’s product type: Combination Fire/Smoke Alarm and Carbon Monoxide Detector (code 714), in Home Maintenance and Structures: Home Security

Other ways the reports write the brand (3)

“Kiddie”, “Kidde ALWAYS ON” and “Kidde by United Technologies”

By month

9 reports from November 2025 to October 2026; the most in August 2026, 2. 37 earlier reports, since December 2020, are in the table.

The numbers, as a table

Reports to CPSC by the month each was made, newest first
Month	Reports
October 2026	1
August 2026	2
July 2026	2
June 2026	2
April 2026	1
February 2026	1
September 2025	1
August 2025	2
July 2025	1
June 2025	1
May 2025	1
February 2025	1
January 2025	2
December 2024	1
November 2024	1
October 2024	4
September 2024	2
August 2024	1
July 2024	2
May 2024	1
February 2024	2
December 2023	1
October 2023	2
September 2023	1
April 2023	1
March 2023	1
October 2022	2
September 2022	2
June 2021	1
January 2021	1
December 2020	2

How badly anyone was hurt

Death 1
First aid 1 CPSC: Injury, First Aid Received by Non-Medical Professional
Hurt, no treatment 2 CPSC: Injury, No First Aid or Medical Attention Received
No one hurt 32 CPSC: Incident, No Injury
No incident, no one hurt 10 CPSC: No Incident, No Injury

As each report says it, in short words; CPSC’s own words are under each.

The reports, as CPSC published them

Reports people made to the U.S. Consumer Product Safety Commission. CPSC publishes each one after sending it to the company named, and doesn’t guarantee they’re accurate. A report isn’t a recall.

Each report is the words of the person who made it, as CPSC published them. The company’s comments, where CPSC published any, are set apart as the company’s own.

CPSC, SaferProducts.gov public database export. Released Oct 28, 2026. Updated daily.

No one hurt
Made Oct 7, 2026, sent to the company Oct 13, 2026, published by CPSC Oct 27, 2026

The product, in the report: Kidde 900-CUAR-V combination photoelectric smoke/CO alarm with voice manufactured on February 29, 2024

Kidde 900-CUAR-V combination smoke detector and carbon monoxide detector triggered a false alarm. The unit reported both fire and carbon monoxide. I changed the batteries and the unit went off again. We evacuated the house and the fire department was dispatched. The fire department checked for carbon monoxide and found none. It was a false alarm.

Model
900-CUAR-V
Where
Port Townsend, Washington: Home/Apartment/Condominium
Who was involved
Unknown
The reporter’s relation to them
Unspecified
As this report names them
Brand Kidde, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(10/23/2026) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products comply with the rigorous standards set by Underwriters Laboratories for performance and reliability.
Nuisance alarms are a rare but possible occurrence, and have numerous potential causes that do not relate in any way to a defect in the product or indicate an unsafe product. Kidde has sold millions of units to satisfied customers over decades. We note that alarms must be cleaned thoroughly on a regular basis to keep them free of dust and debris, in accordance with the instructions in the user manual. When we examine returned units in our testing labs, we invariably find dust and debris in the sensing chamber, which can lead to nuisance alarms, despite customer claims that they thoroughly cleaned the unit. Alarms must also be placed away from vents and fans, as instructed by the user manual. Improper maintenance or placement are often the cause of such false alarms. Our voluminous data on this product shows that it is safe and works as intended, in full compliance with UL 217. We are more than happy to replace any alarms that are not meeting expectations free of charge, perhaps with a different model that may be a better fit for the customer’s use. We ask the customer to reach out to us directly for further assistance. 1 (800) 880-6788 or https:///https://www.kidde.com/home-safety/en/us/support/.

CPSC report 20261007-3E150-2147308238. Submitter: Consumer Search for it on SaferProducts.gov
No incident, no one hurt
Made Aug 22, 2026, sent to the company Aug 27, 2026, published by CPSC Sep 14, 2026

The product, in the report: Hardwired Smoke and Carbon Monoxide Detect. with 10-Year Battery Backup Live Chat and Voice Alerts, 30CUA10-V

We purchased 4 Kidde smoke/ CO Alarms 30CUA10-V in May 2025. Three of the four have false alarmed reporting a fire in the middle of the night. We end up taking the alarm down or knocking it down if we cant reach it (we have very high ceilings and dont feel comfortable climbing 15 feet off the ground on a ladder in the middle of the night). Then we go for a long time without a smoke alarm. Kidde replaced on of the alarms free of charge but its obviously a faulty product. Its not a battery chirping, its the alarm going off announcing fire. There is clearly something wrong with the design of these alarms.

Model
30CUA10-V
Bought from
Home depot, California
Bought
May 18, 2025
Where
Pacific Palisades, California: Home/Apartment/Condominium
Who was involved
Age 46, Unknown
The reporter’s relation to them
Self
As this report names them
Brand Kidde, made or sold by UTC Fire & Security
How badly, in CPSC’s words
No Incident, No Injury

The company’s comments, in its own words

(9/11/2026) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products comply with the rigorous standards set by Underwriters Laboratories for performance and reliability.
Nuisance alarms are a rare but possible occurrence, and have numerous potential causes that do not relate in any way to a defect in the product or indicate an unsafe product. Kidde has sold millions of units to satisfied customers over decades. We note that alarms must be cleaned thoroughly on a regular basis to keep them free of dust and debris, in accordance with the instructions in the user manual. When we examine returned units in our testing labs, we invariably find dust and debris in the sensing chamber, which can lead to nuisance alarms, despite customer claims that they thoroughly cleaned the unit. Alarms must also be placed away from vents and fans, as instructed by the user manual. Improper maintenance or placement are often the cause of such false alarms. Our voluminous data on this product shows that it is safe and works as intended, in full compliance with UL 217. It appears that the customer’s high ceilings are making it difficult for them to maintain their alarms regularly. In any event, Kidde replaced their alarms, and the new alarms appears to be working without incident, which points to dust accumulation as the reason for the initial alarms sounding. As such, the alarms are working as intended, and we encourage the customer to maintain them regularly, in accordance with the user guide.

CPSC report 20260822-86464-2147312060. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Aug 13, 2026, sent to the company Aug 18, 2026, published by CPSC Sep 2, 2026

The product, in the report: Kidde 10-year Battery and Hardwired Smoke and Carbon Monoxide Detectors, Interconnectable, Model 30CUA10

On June 8, 2026, at approximately 9 p.m., all four Kidde Model 30CUA10 hardwired combination smoke and carbon monoxide alarms (manufacturing date March 12, 2025) installed at my residence in [REDACTED] activated simultaneously, emitting continuous alerts. My wife, who was alone in the residence, was unable to silence the units and was forced to physically remove all four from the walls. There was no fire, no smoke, and no carbon monoxide present. On June 12, 2026, a [REDACTED] technician inspected all appliances capable of emitting CO and confirmed no carbon monoxide leak. The four units were purchased on October 15, 2025 at The Home Depot, [REDACTED], Auburn, CA 95603 for $270.15 and were professionally installed and hardwired on October 16, 2025. The simultaneous activation of all four units in the absence of any hazard is consistent with an internal sensor or firmware defect. I am aware of a March 20, 2026 [REDACTED] complaint involving six Kidde Model 30CUA10-V units from a July 19, 2024 manufacturing batch, in which 50% suffered hardware failure with identical false alarm behavior. Kidde acknowledged that defect in its [REDACTED] response. I sent a written demand letter to Kidde at Kidde.Product.Support@carrier.com on June 18, 2026. Kidde failed to respond within the 14-day response deadline stated in my letter, and has not responded at all as of the date of this complaint.

Model
Model 30CUA10
UPC
047871315444
Serial number
L-000036-MX-01 Rev A
Bought from
Home Depot
Bought
Oct 15, 2025
Where
Auburn, California: Home/Apartment/Condominium
Who was involved
Female
The reporter’s relation to them
Unspecified
As this report names them
Brand Kidde, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(8/25/2026) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products comply with the rigorous standards set by Underwriters Laboratories for performance and reliability.
Nuisance alarms are a rare but possible occurrence, and have numerous potential causes that do not relate in any way to a defect in the product or indicate an unsafe product. Kidde has sold millions of units to satisfied customers over decades. We note that alarms must be cleaned thoroughly on a regular basis to keep them free of dust and debris, in accordance with the instructions in the user manual. When we examine returned units in our testing labs, we invariably find dust and debris in the sensing chamber, which can lead to nuisance alarms, despite customer claims that they thoroughly cleaned the unit. Alarms must also be placed away from vents and fans, as instructed by the user manual. Improper maintenance or placement are often the cause of such false alarms. Our voluminous data on this product shows that it is safe and works as intended, in full compliance with UL 217. The alarms likely alerted simultaneously because they are interconnected alarms, meaning when one alarm sounds, all interconnected alarms will sound. This is not evidence of a batch failure, but a safety feature to alert all occupants of a home. We are more than happy to replace any alarms that are not meeting expectations free of charge, perhaps with a different model that may be a better fit for the customer’s use. We will reach out to the customer directly. Finally, we note that the email address used by the customer to contact us is no longer in use, since our divesture from Carrier in December 2024. 1 (800) 880-6788 or https:///https://www.kidde.com/home-safety/en/us/support/.

CPSC report 20260813-CD76F-2147312472. Submitter: Consumer Search for it on SaferProducts.gov
Hurt, no treatment
Made Jul 31, 2026, sent to the company Aug 5, 2026, published by CPSC Aug 19, 2026

The product, in the report: Kidde 900-CUAR smoke/CO detection system with 5 detectors, manufactured in Feb 2023.

I have a Kidde 900-CUAR smoke/CO detection system in my house comprised of 5 detectors. The Kidde system was manufactured in Feb 2023. Not only did the entire system false alarm at 3:45am this morning - it was sooo loud it was PAINFUL. In fact my ears are still ringing indicating permanent hearing damage. Not to mention how unbelievably dangerous to be so excessively loud that it’s disorientating, if not very disorientating. Why are these fire/smoke/CO detector companies still being allowed to make detectors that sound off so loud they’re disorientating and cause hearing damage?? This is an unbelievably stupid problem that’s been allowed to go on far too long.

Model
900-CUAR
Where
Boardman, Oregon: Home/Apartment/Condominium
Who was involved
Male
The reporter’s relation to them
Self
As this report names them
Brand Kidde, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Injury, No First Aid or Medical Attention Received

The company’s comments, in its own words

(8/6/2026) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products comply with the rigorous standards set by Underwriters Laboratories for performance and reliability.
Nuisance alarms are a rare but possible occurrence, and have numerous potential causes that do not relate in any way to a defect in the product or indicate an unsafe product. Kidde has sold millions of units to satisfied customers over decades. We note that alarms must be cleaned thoroughly on a regular basis to keep them free of dust and debris, in accordance with the instructions in the user manual. When we examine returned units in our testing labs, we invariably find dust and debris in the sensing chamber, which can lead to nuisance alarms, despite customer claims that they thoroughly cleaned the unit. Alarms must also be placed away from vents and fans, as instructed by the user manual. Improper maintenance or placement are often the cause of such false alarms. Our voluminous data on this product shows that it is safe and works as intended, in full compliance with UL 217. Regarding the issue with sound level, this is governed by UL 217 and local building codes, which require alarms to sound at a certain level, in order to ensure that they are loud enough to alert occupants to potential danger, but not loud enough to cause permanent ear injury. To lower the sound level would be a violation of the standard and code, and could put occupants at risk of not being alerted to a fire. We are more than happy to replace any alarms that are not meeting expectations free of charge, perhaps with a different model that may be a better fit for the customer’s use. We kindly ask the customer to reach out to us directly. 1 (800) 880-6788 or https:///https://www.kidde.com/home-safety/en/us/support/.

CPSC report 20260731-4CB72-2147313109. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Jul 3, 2026, sent to the company Jul 8, 2026, published by CPSC Jul 22, 2026

The product, in the report: Kidde Hardwired Smoke Detector with Smart Features and Voice Alerts, 10-Year Battery Backup, Wi-Fi Enabled The model number is P4010ACSCO-WF. The issue number is 0010023 2022 Jan 18

I purchased 11 Kidde Smoke/CO detectors from Home Depot in 2022. They have consistently had false alarms 2-3 times per year. These are meant to be Wifi interconnected units to allow me to determine which one is going off. However, the Wifi consistently fails. Right now, seven of the units are not able to connect to Wifi. Two of the units were already replaced by Kidde.
When I called for support, Kidde noted that these units may accumulate dust and then go off accidentally. I have cleaned the units, and these false alarms still happen.
I have attempted to contact Kidde multiple times. The last time was September of 2025. I did not receive a response via email or phone.
The manufacture date of all of the units is in January of 2022 and the issue number on all devices is 0010023.
The most recent false alarm was today.

Model
P4010ACSCO-WF
Serial number
2581-7108-00
Bought from
Home Depot
Bought
Sep 12, 2022
Where
Briarcliff Manor, New York: Home/Apartment/Condominium
Who was involved
Unspecified
The reporter’s relation to them
Unspecified
As this report names them
Brand Kidde, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(7/21/2026) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products comply with the rigorous standards set by Underwriters Laboratories for performance and reliability.
Nuisance alarms are a rare but possible occurrence, and have numerous potential causes that do not relate in any way to a defect in the product or indicate an unsafe product. Kidde has sold millions of units to satisfied customers over decades. We note that alarms must be cleaned thoroughly on a regular basis to keep them free of dust and debris, in accordance with the instructions in the user manual. When we examine returned units in our testing labs, we invariably find dust and debris in the sensing chamber, which can lead to nuisance alarms, despite customer claims that they thoroughly cleaned the unit. Alarms must also be placed away from vents and fans, as instructed by the user manual. Improper maintenance or placement are often the cause of such false alarms. Our voluminous data on this product shows that it is safe and works as intended, in full compliance with UL 217. Regarding the issue with WIFI connections, this is often a problem with the customer’s home WIFI strength of signal coverage throughout the home. We are more than happy to replace any alarms that are not meeting expectations free of charge, perhaps with a different model that may be a better fit for the customer’s use. We will reach out to this customer directly, if we have not already resolved their issue to satisfaction. 1 (800) 880-6788 or https:///https://www.kidde.com/home-safety/en/us/support/.

CPSC report 20260703-8E4C1-2147314510. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Jun 9, 2026, sent to the company Jun 12, 2026, published by CPSC Jun 30, 2026

The product, in the report: Voice combination smoke and co detectors with 10 year warranties manufactured on May 17 2024. Model 30CUA10-VCA

2of 3 combination smoke and co detectors with 10 year warranties I purchased one year ago has stopped working. I contacted Kidde, but they do not respond.

Model
30CUA10-VCA
Where
Trenton, Illinois: Home/Apartment/Condominium
Who was involved
Unspecified
The reporter’s relation to them
Unspecified
As this report names them
Brand Kidde, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(6/12/2026) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products comply with the rigorous standards set by Underwriters Laboratories for performance and reliability.
These units are under warranty and eligible for a free replacement. We will reach out to the customer, if we have not responded already, in order to process the warranty replacement. 1 (800) 880-6788 or https:///https://www.kidde.com/home-safety/en/us/support/.

CPSC report 20260609-74F74-2147317380. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Jun 6, 2026, sent to the company Jun 10, 2026, published by CPSC Jun 26, 2026

The product, in the report: Smoke and carbon monoxide alarm

My Kidde smoke and carbon monoxide alarm failed on. It sounded for about 20 minutes and then stopped. About 10 minutes later it sounded again for about 40 minutes and then stopped. After about 10 minutes of silence, it started up again and stayed on. I verified multiple times that there was no smoke or fire in the house. Since I had multiple smoke detectors daisychained, I disabled the batteries first and then one by one I disconnected the smoke detectors from my power supply until I found a failed unit. I verified this by plugging the other units back in with no issue. I took the failed unit and pushed the battery door closed and within 30 seconds it began sounding the alarm. This model number is KN COPE IC with a manufactured date of January 12 of 2023 and installation date of May 27, 2023 est. The battery is a Gold Peak alkaline whats the name Kidde. I checked the battery voltage and it measured 9.51 VDC.O

Model
KN- COPE- IC
Serial number
S1816
Bought from
Home Depot
Bought
May 22, 2023
Where
Schoolcraft, Michigan: Home/Apartment/Condominium
Who was involved
Unknown
The reporter’s relation to them
Unspecified
As this report names them
Brand Kidde, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(6/12/2026) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products comply with the rigorous standards set by Underwriters Laboratories for performance and reliability.
Nuisance alarms are a rare but possible occurrence, and have numerous potential causes that do not relate in any way to a defect in the product or indicate an unsafe product. Kidde has sold millions of units to satisfied customers over decades. We note that alarms must be cleaned thoroughly on a regular basis to keep them free of dust and debris, in accordance with the instructions in the user manual. When we examine returned units in our testing labs, we invariably find dust and debris in the sensing chamber, which can lead to nuisance alarms, despite customer claims that they thoroughly cleaned the unit. Alarms must also be placed away from vents and fans, as instructed by the user manual. Improper maintenance or placement are often the cause of such false alarms. Our voluminous data on this product shows that it is safe and works as intended, in full compliance with UL 217. We are more than happy to replace any alarms that are not meeting expectations free of charge, perhaps with a different model that may be a better fit for the customer’s use. We kindly ask this consumer to reach out to us directly. 1 (800) 880-6788 or https:///https://www.kidde.com/home-safety/en/us/support/.

CPSC report 20260606-1AD27-2147317769. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Apr 20, 2026, sent to the company Apr 22, 2026, published by CPSC May 6, 2026

The product, in the report: kidde combination smoke and carbon monoxide 10 yr battery alarm

combination kidde smoke and co alarm with sealed 10 year battery false alarm. the unit alarmed again (3rd time this has happened since install) and would continue to report “fire” around 515 am. it had to be disabled so we could sleep. no fire, no dust, no high humidity. we regularly vacuum around the unit to keep it clean as advised.

Model
p3010cu
Serial number
made in mexico
Bought from
home depot
Bought
Oct 1, 2024, about then
Where
chapel hill, North Carolina: Home/Apartment/Condominium
Who was involved
Unspecified
The reporter’s relation to them
Unspecified
As this report names them
Brand kidde, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(4/30/2026) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products comply with the rigorous standards set by Underwriters Laboratories for performance and reliability.
Nuisance alarms are a rare but possible occurrence, and have numerous potential causes that do not relate in any way to a defect in the product or indicate an unsafe product. Kidde has sold hundreds of thousands of these units to satisfied customers over a number of years. We note that alarms must be cleaned thoroughly on a regular basis to keep them free of dust and debris, in accordance with the instructions in the user manual. When we examine returned units in our testing labs, we invariably find dust and debris in the sensing chamber, which can lead to nuisance alarms, despite customer claims that they thoroughly cleaned the unit. Alarms must also be placed away from vents and fans, as instructed by the user manual. Improper maintenance or placement are often the cause of such false alarms. Our voluminous data on this product shows that it is safe and works as intended, in full compliance with UL 217. This customer contacted us on March 30, 2026, and her replacement was delivered to her free of charge on April 21, 2026. We consider this matter closed.

CPSC report 20260420-9F50C-2147320353. Submitter: Consumer Search for it on SaferProducts.gov
No incident, no one hurt
Made Feb 11, 2026, sent to the company Feb 17, 2026, published by CPSC Mar 3, 2026

The product, in the report: Kidde Firex PlugIn Explosive Gas and Carbon Monoxide Detector

I purchased a Kidde combination smoke and explosive gas detector from Home Depot in Atlanta a few months ago.
About a month after installing it, I accidentally left my gas on for around 15 minutes. I could clearly smell the gas in my home, but the detector never alarmed. That was really concerning, since this is supposed to be a safety device designed to detect dangerous conditions.
Because of that, I believe the unit may be defective.
I contacted Kidde customer service to explain what happened, but they were not helpful and did not offer any real solution, replacement, or follow-up support. For a company selling life-safety equipment, that was pretty disappointing.
Im filing this complaint because I want this issue taken seriously. At minimum, I would like the unit replaced and an explanation of why it failed to detect anything in this situation.

Model
KN-COEG-3
Bought from
HOME DEPOT
Bought
Feb 5, 2025, about then
Where
Atlanta, Georgia: Home/Apartment/Condominium
Who was involved
Age 41, Unknown
The reporter’s relation to them
Self
As this report names them
Brand Kidde, made or sold by UTC Fire & Security
How badly, in CPSC’s words
No Incident, No Injury

The company’s comments, in its own words

(3/3/2026) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products comply with the rigorous standards set by Underwriters Laboratories for performance and reliability.
Below is our latest response to this consumer. We are replacing their unit and retrieving it for testing in our labs to ensure that it is working as intended. As you will see from the explanation below, it is quite likely that the unit did not alarm because gas did not accumulate above threshold levels set by UL standards for this type of product, rather than as a result of a defect. We will confirm through testing in our lab. “[REDACTED]
Thank you for reaching out and for taking the time to describe your experience. I understand how concerning it must have been to smell gas in your home and not see any response from your Kidde combination smoke and carbon monoxide detector. We take issues involving life safety devices very seriously, and I appreciate the opportunity to address your concerns.
Why the Alarm May Not Have Activated Based on the User Guide for the Kidde KN COEG 3 (see attached), the unit functions as both a carbon monoxide (CO) alarm and an explosive gas detector, but each works in specific ways:
Carbon monoxide detection: CO is only produced when fuel is burning incompletely, not when unburned natural gas is accidentally released. A gas stove left on without ignition releases natural gas, which contains no carbon monoxide. Therefore, a CO reading of zero is expected in this situation.
Explosive gas detection: The unit is also designed to detect natural gas or propane. When it senses either gas at hazardous concentrations, the display shows “GAS” and the alarm emits a repeating pattern (½ second beep / ½ second silence).
However, the manual also notes that the alarm is intended to function as a monitor, not a rapid response device for very short term or low level gas presence: [[REDACTED]] “This CO and Gas alarm is designed to act as a monitor. It is not designed for use as a short term…”
In many cases, a small or brief release of natural gas may dissipate too quickly or remain below the alarm’s threshold, even though the odorant (mercaptan) is detectable to your nose at extremely low levels.
Why You Smelled Gas but No Alarm Occurred Natural gas companies add a strong-smelling odorant so leaks are identifiable at levels far below dangerous concentrations. Your detector, however, must reach a specific threshold before triggering to avoid constant nuisance alarms.
This model’s carbon monoxide (CO) alarm is designed to activate only after CO has been present at certain levels for a specific amount of time. Here’s what that means in everyday terms: At 70 parts per million (ppm): The alarm will sound if this level continues for about 1 to 4 hours. At 150 ppm: The alarm will sound within 10 to 50 minutes at this higher level. At 400 ppm: This is a dangerous level, and the alarm will go off within 4 to 15 minutes.
What this really means for you Carbon monoxide alarms are intentionally designed not to go off right away at low levels. This helps prevent unnecessary false alarms from minor or short lived CO fluctuations. Instead, these alarms follow national safety standards to alert you only when CO reaches levels known to cause harm if exposure continues. The higher the CO level, the faster the alarm responds: Low level = slower response Medium level = faster response High level = very fast response This timing helps make sure you’re alerted when it truly matters for your health and safety.
In short, it is possible to clearly smell gas without reaching the alarm threshold, and the device may still be functioning correctly. Next Steps & Recommended Resolution Even with the explanations above, your concern is completely valid—any uncertainty around a safety device warrants attention. Since you suspect a defect, and because your attempt to obtain support from Kidde was unsuccessful, we want to ensure you’re taken care of properly. Here’s what I can do for you: We will replace the unit to ensure you have full confidence in your home’s safety equipment. You should receive the replacement unit in 7-10 business days. Additionally, I would like to collect the unit that you believe did not function properly for analysis. Please find attached a return shipping label so that you can send that unit to us.
Additional Safety Note If you ever smell gas again—regardless of what any detector shows—Kidde’s official guidance is to evacuate immediately, avoid operating electric switches, and contact your fire department.
We sincerely appreciate you bringing this to our attention. Your safety is our priority, and we want you to feel fully protected and supported. Please reply with your preferred shipping address, and I will arrange for your replacement unit right away.”

CPSC report 20260211-9D1BB-2147323649. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Sep 2, 2025, sent to the company Sep 5, 2025, published by CPSC Sep 19, 2025

The product, in the report: Kidde Combination Smoke and Carbon Monoxide detector Model 30CUAR and CUACFEX

We installed (as code required) interconnected smoke/CO detectors in our new build (built in 2024)home. The products are Kidde Model 30CUAR and CUACFEX. To date we have had 4 of the units fail (an approximately 50% failure rate) with a mean time between failures of about 2 months. Seems like an unreliable and unsafe product to have in a code required safety applications

Model
30CUAR and CUACFEX
UPC
4787133083
Serial number
0087873
Where
Spokane, Washington: Home/Apartment/Condominium
Who was involved
Unknown
The reporter’s relation to them
Unspecified
As this report names them
Brand Kidde, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(11/13/2025) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products comply with the rigorous standards set by Underwriters Laboratories for performance and reliability.
Unfortunately the consumer has not provided sufficient information regarding this matter, as we are unable to discern what type of failure the consumer has experienced. We will reach out to the consumer so that we may work with them to ensure that they are satisfied with our products. 1 (800) 880-6788 or https:///https://www.kidde.com/home-safety/en/us/support/.

CPSC report 20250902-A75F1-2147328136. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Aug 26, 2025, sent to the company Sep 3, 2025, published by CPSC Sep 17, 2025

The product, in the report: Kidde 10 year combination Alarm Wire Free Interconnected. Model number P4010DCSCO-W Item number 21028747

On August 26, 2025, I arrived at my office and heard a constant beeping from our Kidde carbon monoxide and smoke alarm, model number P40110DCSC0. There was no fire, and the smoke alarm was stored in its original box without being used. The smoke alarm was stored in an air-conditioned office building. I contacted the manufacturer to report this issue. The smoke alarm was manufactured in July 2019.
The manufacturer informed me that they would not replace the failed smoke alarm because it had not been activated within a year of its manufacture. They also stated that the battery would drain faster when the alarm is in the standby (off) position if not used. According to them, the battery would last longer if the alarm were used, which does not make sense given that these smoke alarms are designed to be interconnected wirelessly to multiple smoke alarms and cannot be recharged.
This is a significant issue for consumers’ safety and a false sense of security, as the battery does not last 10 years, even when in standby mode. The manufacturer offered no replacement or support and placed the blame on the consumer for not turning it on.

Model
P4010DCSCO-W
UPC
47871273311
Serial number
DD10023
Where
Altamonte Springs, Florida: Other
Who was involved
Unspecified
The reporter’s relation to them
Unspecified
As this report names them
Brand Kidde, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(9/17/2025) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products are designed to comply with the rigorous standards set by Underwriters Laboratories for performance and reliability.
Nuisance alarms are a rare but possible occurrence, and have numerous potential causes that do not relate in any way to a defect in the product. We note that alarms must be cleaned on a regular basis to keep them free of dust and debris, in accordance with the instructions in the user manual. They must also be placed away from vents and fans, as instructed by the user manual. Improper maintenance or placement are often the cause of such false alarms. We also note that this particular unit was used as a demonstration unit by the fire department, not as a conventional alarm device. This nonconventional use may have contributed to the nuisance alarming. We are in contact with this consumer, and have agreed to replace their unit free of charge, despite being out of warranty, and we will retrieve the existing unit for further examination in our testing laboratory.

CPSC report 20250826-B60B9-2147328342. Submitter: Local Government Agency Search for it on SaferProducts.gov
No incident, no one hurt
Made Aug 25, 2025, sent to the company Aug 28, 2025, published by CPSC Sep 12, 2025

The product, in the report: Kidde Smoke and Carbon Monoxide Detector Alarm with Voice Warning | Hardwired w/10 Year Lithium Battery Backup | Interconnectable | Model # i12010SCO,

Complaint Against: Kiddie (Kidde) Smoke and Carbon Monoxide Detectors
Nature of Complaint: Product Safety/Failure to Perform
Complaint Details: I am filing this complaint due to a serious safety failure involving several of my Kidde smoke and carbon monoxide detectors. Recently, my home filled with smokethe entire downstairs and a large portion of the upstairsyet none of the detectors in my home sounded an alarm.
I trust these devices to protect my familys safety. The failure to activate under such hazardous conditions is unacceptable. If this had been an actual fire rather than smoke, or if we had been sleep, the lack of warning could have resulted in life-threatening consequences.
Steps Taken:
The detectors were installed correctly and maintained according to the manufacturers instructions.
The situation has raised immediate concern about the reliability of the entire product line in my home.
Desired Resolution: I am urgently requesting that Kidde:
1. Investigate and explain why these detectors failed to function.
2. Provide a full remedyeither replacement of the seven defective hard-wired units or an upgraded unit.
3. Confirm steps being taken to prevent similar product failures for other customers.
Conclusion: The safety of my family depends on these devices functioning properly. I request immediate attention to this matter and a clear path to resolution.

Model
i12010SCO
Bought from
Amazon
Bought
Dec 1, 2019
Where
Concord, North Carolina: Home/Apartment/Condominium
Who was involved
Age 19, Unspecified
The reporter’s relation to them
My Child
As this report names them
Brand Kiddie, made or sold by UTC Fire & Security
How badly, in CPSC’s words
No Incident, No Injury

The company’s comments, in its own words

(9/11/2025) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products comply with the rigorous standards set by Underwriters Laboratories for performance and reliability.
An alarm not sounding when a consumer believes it should in the presence of smoke is a rare occurrence, and in such cases, Kidde seeks to retrieve the unit in question for rigorous testing in our lab, to ensure that the unit is operating as intended. Our alarms must meet strict UL 217 standards for operating reliably in the presence of smoke, but this does mean that they will automatically alarm at the first sign of smoke. When the alarm triggers is dependent on numerous factors such as obscuration rate, smoke density, etc. We have been in contact with this consumer, and on August 28, agreed to replace her alarms free of charge and are retrieving her existing alarms so that we may test then to ensure that they are operating as intended. It is possible that the consumer simply was mistaken about their expectations of when the alarm should sound, or that the alarms were not properly maintained in accordance with user manual instructions. In very many cases, we find that the alarms have not been maintained properly, and the sensing chamber has accumulated dust or debris, which can affect performance. If we determine that the alarms were not operating as intended, we will follow up. 1 (800) 880-6788 or https:///https://www.kidde.com/home-safety/en/us/support/

CPSC report 20250825-DC297-2147328363. Submitter: Consumer Search for it on SaferProducts.gov
Hurt, no treatment
Made Jul 20, 2025, sent to the company Jul 23, 2025, published by CPSC Aug 6, 2025

The product, in the report: Kidde 10 year Worry-Free Smoke and Carbon Monoxide Alarm - P4010ACSCO. Hardwired with 10 Year Battery Backup

I installed 5 Kidde P4010ACSCO Combination Smoke/CO Alarms in my parents’ home. Three of the 5 were giving off false alarms on a regular basis, so I returned them to Home Depot for new units. Two of the three replacement units also gave constant false alarms, and my parents had to call the fire department one night and they came and removed the alarm. My father called the Kidde 800 number but there didn’t appear to be any resolution, so I wound up replacing the units with similar units from [REDACTED]. I have had no problems with the [REDACTED] units. Looking at the Home Depot reviews on this unit, there are tons of similar complaints, as well as similar complaints to the CPSC on this site. These units need to be recalled - the constant false alarms cause consumers to remove the alarms which is a safety hazard. I used to be legal counsel for Kidde when they were owned by UTC and am shocked that Kidde has not recalled these already given the volume of reviews complaining about this problem. Additionally, the mechanism to turn the 10-year battery off to be able to dispose of these is awkward and requires brute force with a screw driver and I wound up injuring myself switching them off.

Model
P4010ACSCO
UPC
N/A
Serial number
N/A
Bought from
Home Depot
Bought
Apr 1, 2025, about then
Where
Jupiter, Florida: Home/Apartment/Condominium
Who was involved
Age 52, Unspecified
The reporter’s relation to them
Self
As this report names them
Brand Kidde, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Injury, No First Aid or Medical Attention Received

The company’s comments, in its own words

(8/5/2025) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products are designed and tested to comply with the rigorous standards set by Underwriters Laboratories for performance and reliability, including the model in question, which has sold hundreds of thousands of units to happy and satisfied customers.
Nuisance alarms are a rare but possible occurrence, and have numerous potential causes that do not relate in any way to a defect in the product. We note that alarms must be cleaned on a regular basis to keep them free of dust and debris, in accordance with the instructions in the user manual. They must also be placed away from vents and fans, as instructed in the user manual. Improper maintenance or placement are almost invariably the cause of such false alarms. Our customer service department will reach out to this consumer again so that we may work with them to ensure that they are satisfied with our products, including replacing any alarms that are not meeting expectations free of charge, perhaps with a different model that may be a better fit for the customer’s home environment. We also note that this unit can be disabled by simply turning the red disable switch on the back of the unit to the right, using a standard size, Phillips or flat head screwdriver. Brute force is not required. (8/8/2025) UTC Fire & Security : As a follow up, we have reached out to the consumer and are retrieving the units in question for testing in our lab, at no cost to the consumer. We will report back if testing uncovers any potential issues.

CPSC report 20250720-EFF68-2147329432. Submitter: Consumer Search for it on SaferProducts.gov
No incident, no one hurt
Made Jun 26, 2025, sent to the company Jun 30, 2025, published by CPSC Jul 15, 2025

The product, in the report: Kidde Smoke/CO alarm see photos

A Kidde model P3010K-CO smoke and CO alarm, manufactured in May 2023 and installed in September 2023 began to alarm on June 25th, 2025 for no reason. The unit had been maintained per manufacturer recommendation. There was no evidence of either smoke or carbon monoxide presence. The unit was taken out of doors and still could not be silenced, After 2-1.2 hours, the device had to be permenently disabled per the manufacturers directions.

Model
P3010K-CO
UPC
none
Serial number
none
Bought from
Home Depot
Bought
Sep 11, 2023
Where
SEAFORD, New York: Home/Apartment/Condominium
Who was involved
Age 73, Male
The reporter’s relation to them
Self
As this report names them
Brand Kidde, made or sold by UTC Fire & Security
How badly, in CPSC’s words
No Incident, No Injury

The company’s comments, in its own words

(7/9/2025) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products are designed to comply with the rigorous standards set by Underwriters Laboratories for performance and reliability.
Nuisance alarms are a rare but possible occurrence, and have numerous potential causes that do not relate in any way to a defect in the product. We note that alarms must be cleaned on a regular basis to keep them free of dust and debris, in accordance with the instructions in the user manual. They must also be placed away from vents and fans, as instructed by the user manual. Improper maintenance or placement are often the cause of such false alarms. We kindly ask that the consumer contact our customer service department again so that we may work with them to ensure that they are satisfied with our products, including replacing any alarms that are not meeting expectations free of charge, perhaps with a different model that may be a better fit for the customer’s use. 1 (800) 880-6788 or https:///https://www.kidde.com/home-safety/en/us/support/.

CPSC report 20250626-67DA7-2147330160. Submitter: Consumer Search for it on SaferProducts.gov
No incident, no one hurt
Made May 21, 2025, sent to the company May 23, 2025, published by CPSC Jun 9, 2025

The product, in the report: The Kidde hardwired smoke and carbon monoxide detector is a 1.88”D x 5”W x 5”H device powered by 120V AC wiring with a 10-year built-in lithium battery backup and voice alerts, weighing 0.66 Pounds and is white in color.

In January 2025, I replaced all six smoke and carbon monoxide detectors in my home with Kidde combination alarms, model 30CUD10-V. It is now late May and three out of the original six have failed, and now one of the replacements that Kidde sent has failed. The units will chirp three times, flash a red light, and announce “smoke sensor error”. Following the directions in the user manual, and per the verbal instructions from their customer support agent, the alarms were cleaned and reset, but will return to error after just a few minutes or sometimes weeks later. After reading reviews on their website, many other people are experiencing the same problem. I’m concerned for the safety of my family and any other consumers that have purchased these combination alarms.

Model
Model 30CUD10-V
UPC
047871328581
Serial number
L-000011-MY-01 REV A
Bought from
Amazon
Bought
Dec 31, 2024
Where
Pueblo West, Colorado: Home/Apartment/Condominium
Who was involved
Age 34, Male
The reporter’s relation to them
Self
As this report names them
Brand Kidde, made or sold by UTC Fire & Security
How badly, in CPSC’s words
No Incident, No Injury

The company’s comments, in its own words

(6/10/2025) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products comply with the rigorous standards set by Underwriters Laboratories for performance and reliability.
Nuisance alarms are a rare but possible occurrence, and have numerous potential causes that do not relate in any way to a defect in the product. We note that alarms must be cleaned on a regular basis to keep them free of dust and debris, in accordance with the instructions in the user manual. They must also be placed away from vents and fans, as instructed by the user manual. Improper maintenance or placement are often the cause of such false alarms. We kindly ask that the consumer contact our customer service department again so that we may work with them to ensure that they are satisfied with our products, including replacing any alarms that are not meeting expectations free of charge, perhaps with a different model that may be a better fit for the customer’s use. 1 (800) 880-6788 or https:///https://www.kidde.com/home-safety/en/us/support/. [REDACTED]

CPSC report 20250521-3767A-2147331160. Submitter: Consumer Search for it on SaferProducts.gov
No incident, no one hurt
Made Feb 25, 2025, sent to the company Feb 28, 2025, published by CPSC Mar 14, 2025

The product, in the report: Kidde Smoke and Carbon Monoxide Detector Hardwired with Smart Features and Voice Alert

I own the Kidde smart smoke alarm, model P4010ACSC-WF, that worked mostly fine for 3 years with occasional connectivity issues. Recently, the smoke alarm connectivity issues had lasted for almost a month, much longer than normal. I attempted to test the smoke alarm only to discover the testing failed, the smoke alarm would not sound at all. I disconnected and reconnected power to the device, which did not resolve the issue - testing still failed to sound the alarm. After being disconnected from power for a full day, the device finally started testing successfully again. I’m less concerned about the connectivity issues and most concerned that the device was malfunctioning and would not sound the alarm. I reported the defective device to Kidde, but Kidde refused to acknowledge this behavior as a problem and even refused to replace the device. It is concerning to think how long this device might have been in a malfunctioning state, not offering any protection to my home and family. The device offered no beep, no chirp to indicating it was malfunctioning.

Model
P4010ACSC-WF
UPC
047871310425
Serial number
2581-7109-00
Bought from
Home Depot
Bought
Feb 19, 2022
Where
Ankeny, Iowa: Home/Apartment/Condominium
Who was involved
Age 47, Unspecified
The reporter’s relation to them
Self
As this report names them
Brand Kidde, made or sold by UTC Fire & Security
How badly, in CPSC’s words
No Incident, No Injury

The company’s comments, in its own words

(3/5/2025) UTC Fire & Security : At Kidde we take fire and CO safety very seriously, which is why all of our products are tested to meet or exceed the rigorous standards set by Underwriters Laboratories for performance and reliability.
Kidde had previously been in contact with this customer, and during our first call with the customer, the alarm did test properly, but the customer thought that the light was still not on. We explained that the alarm had an ambient light and was operating as intended, but the customer was still not satisfied and the matter was left unresolved. We have recently reached back out to the customer to try to resolve their concerns, and after discussion, we have agreed to ship two new alarms to the customer free of charge, as a gesture of good will and customer service. This appeared to satisfy the customer’s concerns, and we now consider this matter closed.

CPSC report 20250225-EA706-2147332926. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Jan 16, 2025, sent to the company Jan 31, 2025, published by CPSC Feb 14, 2025

The product, in the report: Kidde KN-COPE-IC (pinterconnected combination photoelectric smoke/carbon monoxide detectors, 120V AC with 9V battery backup

I have three Kidde KN-COPE-IC (interconnected combination photoelectric smoke/carbon monoxide detectors, 120V AC with 9V battery backup) that were purchased and installed on February 4, 2020. They have a date of manufacture of October 24, 2019 and a date of replacement of February 4, 2030. They all have a Signaling Code of S1816 and an Issue Number of 0010023 on them.
At approximately 3:30PM on January 10, 2025 I was sitting in the second floor of my home and noticed a strong, burning plastic smell. I went to the lower level and opened one of the doors at the bottom of the landing. Flames were visible 1 above the top of my water heater and smoke was banked down at least 1 foot from the ceiling. I yelled for my wife to bring me an extinguisher. She opened the other door at the bottom of the landing, that goes to her office, and the smoke detector in the room she came from sounded.
I extinguished the fire and opened the windows and exterior doors. The fire department arrived soon after and mechanically ventilated the entire house and documented the fire. After we had calmed down somewhat I realized the smoke detector that was 7 feet away horizontally or 8 feet away in a direct line away from the fire source hadn’t sounded or alerted any of the other two interconnected detectors in the house.
The detector on the second floor in the central stairway outside of the bedrooms also hadnt sounded when the lower door was opened. I went to the detector in the room of origin and the green AC light wasnt illuminated. I took the 9V battery out and checked it. It was a fully charged [REDACTED] 522 9v battery with a date of 12/26 on it but the detector still didnt sound an alarm. I removed the detector from its mounting bracket and saw that the power connector was fully seated in the detector prongs. It couldnt be pushed in farther. I removed the power connector from the detector and then reinserted it. There was no corrosion on any of the connections points, male or female. The green AC power light illuminated immediately. I did the exact same process on the upstairs detector with the same results.
The upstairs detector also hadn’t sounded during the fire and it was exposed to more smoke than the detector that did sound in the room on the lower level. The upper level detector also had a 9V [REDACTED] 522 battery with a date of 12/26 on it but that battery was fully depleted. The batteries in all three detectors were changed on daylight savings day, April 10, 2024, with brand new 9V [REDACTED] 522 batteries with dates of 12/26. All three batteries were tested with a voltage meter on November 3, 2024 and were all still fully charged. The detector on the second level obviously drained the backup battery sometime before January 10, 2025 without warning us that the battery was low. We have never been away from home for more than 6 hours in the previous year, since we work from home, so we would have noticed any warning of a low battery. It never alerted us of a low battery.
After reinstalling the second detector I went to each detector and tested them. They all sounded and alerted the other interconnected detectors as designed to. I repeated this process three times with the same results every time. All of us now check the AC power light at least 10 times a day for every detector and look for the illuminated AC power light every time we walk by a detector and every night before we go to sleep. Im sure we will be doing this same thing for the rest of our lives now. If the fire had occurred 8 hours later than it did there most definitely would have been fatalities from this event.
I was a professional firefighter for 29 years and a fire inspector for part of my career. I was more upset with the smoke detectors not functioning than the fire occurring. The fact that the necessary life safety equipment that we have properly installed didnt perform is more concerning than the fire itself. That is the reason I am reporting this issue in the hopes that a tragedy can be averted for anyone else with these detectors properly installed in their homes.
I tried to contact Kidde customer service on January 11, 2025 but they were closed due to a snowstorm the prior day. I contacted them as soon as they opened on January 13, 2025 and told them all of the above. They told me they would be replacing the two detectors that didnt work and I would be receiving them within 2 to 3 weeks minimum.
I received an email from Kidde customer service on January 15, 2025 with a prepaid shipping label telling me to return both of the detectors within 7 to 10 business days. I told them that was insane and I would only return the detectors in question after I had installed the replacement detectors. My other recourse would be to purchase and install a different brand of detectors and then I would be sending these two detectors in question to the CPSC. They immediately emailed me that I could send the detectors back to them them after I had received the replacements.

Model
KN-COPE-IC
UPC
PLUG-NED-87403
Serial number
N/A
Bought from
Home Depot
Bought
Feb 4, 2020
Where
Coventry, Rhode Island: Home/Apartment/Condominium
Who was involved
Age 61, Unspecified
The reporter’s relation to them
Self
As this report names them
Brand Kidde, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(2/12/2025) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products comply with the rigorous standards set by Underwriters Laboratories for performance and reliability.
An alarm not sounding when a consumer believes it should in the presence of smoke is a rare occurrence, and in such cases, Kidde seeks to retrieve the unit in question for rigorous testing in our lab, to ensure that the unit is operating as intended. Our alarms must meet strict UL 217 standards for operating reliably in the presence of smoke, but this does mean that they will automatically alarm at the first sign of smoke. When the alarm triggers is dependent on numerous factors such as obscuration rate, smoke density, etc. We ask that the units be returned to us so that we may test then to ensure that they are operating as intended, in which case it would be likely that the consumer simply was mistaken about their expectations of when the alarm should sound. We also dispute that this alarm is part of an associated recall, as it is not. 1 (800) 880-6788 or https:///https://www.kidde.com/home-safety/en/us/support/

CPSC report 20250116-B7131-2147333863. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Jan 13, 2025, sent to the company Jan 15, 2025, published by CPSC Jan 30, 2025

The product, in the report: Kiddie Smoke and Carbon Monoxide Detector Model P3010CU

Smoke/CO detector false alarms. Kiddie Model P3010CU

Model
P3010CU
Serial number
None
Where
Valley Falls, New York: Home/Apartment/Condominium
Who was involved
Unspecified
The reporter’s relation to them
Unspecified
As this report names them
Brand Kiddie, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(1/21/2025) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products comply with the rigorous standards set by Underwriters Laboratories for performance and reliability.
Nuisance alarms are a rare but possible occurrence, and have numerous potential causes that do not relate in any way to a defect in the product. We note that alarms must be cleaned on a regular basis to keep them free of dust and debris, in accordance with the instructions in the user manual. They must also be placed away from vents and fans, also as instructed by the user manual. Improper maintenance or placement are often the cause of such false alarms. This customer contacted Kidde on October 10, 2024, and we agreed to send him a replacement unit free of charge, which he received on October 25, 2024. We also note that the unit in question is not associated with any CPSC recall. We now consider this matter closed.

CPSC report 20250113-8B7B0-2147333927. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Dec 18, 2024, sent to the company Dec 20, 2024, published by CPSC Jan 13, 2025

The product, in the report: Kidde Photoelsectic Smoke alarm with Voice and CO

I have six of these interconnected fire/CO combination detectors in my home that are less that two years old. These things constantly false alarm to where I’m getting 3-4 false alarms (usually between 1-3am) per month. If you review the Kidde home page, you’ll see these things are a 1-star item with false alarms being a constant choice. This many false alarms is not safe.

Model
P4010ACS, P4010ACSCO
UPC
NA
Serial number
NA
Bought from
Home Depot
Bought
Oct 3, 2022, about then
Where
Los Altos Hills, California: Home/Apartment/Condominium
Who was involved
Age 56, Unknown
The reporter’s relation to them
Self
As this report names them
Brand Kidde, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(12/23/2024) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products comply with the rigorous standards set by Underwriters Laboratories for performance and reliability.
Nuisance alarms are a rare but possible occurrence, and have numerous potential causes that do not relate in any way to a defect in the product. We note that alarms must be cleaned on a regular basis to keep them free of dust and debris, in accordance with the instructions in the user manual. They must also be placed away from vents and fans, as instructed by the user manual. Improper maintenance or placement are often the cause of such false alarms. We kindly ask that the consumer contact our customer service department so that we may work with them to ensure that they are satisfied with our products, including replacing any alarms that are not meeting expectations free of charge, perhaps with a different model that may be a better fit for the customer’s use. 1 (800) 880-6788 or https:///https://www.kidde.com/home-safety/en/us/support/

CPSC report 20241218-35A2D-2147334524. Submitter: Consumer Search for it on SaferProducts.gov
No incident, no one hurt
Made Nov 29, 2024, sent to the company Dec 4, 2024, published by CPSC Dec 18, 2024

The product, in the report: The product is a Kidde 900-CUAR, a combination smoke and carbon monoxide detector designed for residential use. It is white in color and features a round, compact design that measures approximately 5-6 inches in diameter. The unit is hardwired with a battery backup and is designed to be installed on a ceiling or wall. It includes a test/reset button and a loud audible alarm to signal smoke or carbon monoxide detection. The purpose of the device is to provide early warning of fire or carbon monoxide hazards to ensure household safety.

I have been having trouble with the Kidde 900-CUAR smoke and carbon monoxide detector since June 2024. The unit frequently goes off at night, with the issue occurring consistently between the hours of 2 AM and 7 AM, causing significant disturbances. I have bought and replaced the batteries multiple times, thinking the batteries were not good, and I have thoroughly cleaned the detector to ensure dust or debris wasnt causing the issue. Despite these efforts, the false alarms persist.
After having to take the unit down, I have relied on the sole bedroom smoke detector, which is a different Kidde model and does not provide carbon monoxide detection. Recently, I needed to replace the battery in the bedroom detector, so I reinstalled the 900-CUAR to ensure some level of safety. However, even with brand-new batteries, the 900-CUAR chirped continuously throughout the day and especially during the night, forcing me to take it down again.
As I write this, I currently have no functional detector in my home, as it is Thanksgiving, and I am waiting for a replacement battery for the other smoke detector to arrive. This leaves my household extremely vulnerable in the event of an emergency.

Model
900-CUAR
UPC
047871322503.
Serial number
S1816
Where
Mountain House, California: Home/Apartment/Condominium
Who was involved
Age 3, Unspecified
The reporter’s relation to them
My Child
As this report names them
Brand Kidde, made or sold by UTC Fire & Security
How badly, in CPSC’s words
No Incident, No Injury

The company’s comments, in its own words

(12/10/2024) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products comply with the rigorous standards set by Underwriters Laboratories for performance and reliability.
Nuisance alarms are a rare but possible occurrence, and have numerous potential causes that do not relate in any way to a defect in the product. We note that alarms must be cleaned on a regular basis to keep them free of dust and debris, in accordance with the instructions in the user manual. They must also be placed away from vents and fans, as instructed by the user manual. Improper maintenance or placement are often the cause of such false alarms. We kindly ask that the consumer contact our customer service department so that we may work with them to ensure that they are satisfied with our products, including replacing any alarms that are not meeting expectations free of charge, perhaps with a different model that may be a better fit for the customer’s use. 1 (800) 880-6788 or https:///https://www.kidde.com/home-safety/en/us/support/

CPSC report 20241129-C2EC5-2147334968. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Oct 15, 2024, sent to the company Oct 18, 2024, published by CPSC Nov 14, 2024

The product, in the report: Kidde Smoke & Carbon Monoxide Detector, 10-Year Battery, Interconnect Combination Smoke & CO Alarm, Voice Alert

Smoke detectors with 10 year Lithium batteries intermittent false alarms due Lithium battery Voltage instability. This happened with a few Kiddie Combo Smoke/CO detectors as well as a number of [REDACTED] Sound units. The problem is with the constant falsing many people remove and do not replace the detectors and/or ignore the alarms which can and will lead to unsafe situations and someone getting hurt or worse. This does not appear to be a model or manufacturer specific issue, I firmly belive it is due to the nature of Lithium cells that are unstable and have Voltage flucuations. Even when the detectors are AC powered witht he 10 year Lithium back up battery, I beleive the battery is causing many of the detectors to false on a random basis. This is a BIG issue and need to be investigate. Just search online and you will see thouands of complaints, but many may not realize the problem is likely due to the Lithium batteries.

Model
P4010DCSCO-W
UPC
047871273119
Serial number
Unknown at this time
Bought from
Amazon
Bought
Aug 28, 2023
Where
McLean, Virginia: Home/Apartment/Condominium
Who was involved
Unspecified
The reporter’s relation to them
Unspecified
As this report names them
Brand Kiddie, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(11/22/2024) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products comply with the rigorous standards set by Underwriters Laboratories for performance and reliability.
Nuisance alarms are a rare but possible occurrence, and have numerous potential causes that do not relate in any way to a defect in the product. We note that alarms must be cleaned on a regular basis to keep them free of dust and debris, in accordance with the instructions in the user manual and as provided on the Kidde website. They must also be placed away from vents and fans, as instructed by the user manual. Improper maintenance or placement are quite often the cause of such false alarms. In any event, we kindly ask that the consumer contact our customer service department so that we may work with them to ensure that they are satisfied with our products, including replacing any alarms that are not meeting expectations free of charge, perhaps with a different model that may be a better fit for the customer’s use. 1 (800) 880-6788 or https:///https://www.kidde.com/home-safety/en/us/support/. We also dispute the consumer’s claim that the lithium battery in the unit is the cause of false alarms, as we have no evidence to support said consumer opinion. Our products must pass rigorous testing with Underwriters Laboratories for safety and reliability before they enter the market.

CPSC report 20241015-BD997-2147335968. Submitter: Consumer Search for it on SaferProducts.gov
First aid
Made Oct 11, 2024, sent to the company Oct 18, 2024, published by CPSC Nov 1, 2024

The product, in the report: Kidde Smoke and Carbon Monoxide Alarm with Air Quality Monitoring System

For more than 1.5 years, my Kiddie alarms have been plagued by incessant and disruptive nuisance alarms. These unwarranted disturbances have tragically impacted my family, especially my vulnerable children. Despite Kiddie’s attempts to rectify the issue by replacing the alarms three times, the nuisance alarms persist without end. It is glaringly obvious that these faulty devices are unfit for the market, as is evident from numerous online reviews lamenting the same problem with this product.
Adding insult to injury, on 10/11 at approximately 3 AM, the nuisance alarm was activated yet again, leading to a harrowing incident where my 7-year-old daughter jolted out of bed, collided with a wall, and tumbled down the stairs, resulting in a distressing head contusion and sprained ankle. This is an abhorrent consequence that highlights the urgent need for these defective alarms to be immediately recalled

Model
P4010ACSCOAQ-WF
UPC
047871308439
Serial number
0813813CE860
Bought from
Direct from Kiddie
Bought
Oct 1, 2024, about then
Where
Budd Lake, New Jersey: Home/Apartment/Condominium
Who was involved
Age 7, Female
The reporter’s relation to them
My Child
As this report names them
Brand Kidde, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Injury, First Aid Received by Non-Medical Professional

The company’s comments, in its own words

(10/30/2024) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products comply with the rigorous standards set by Underwriters Laboratories for performance and reliability.
Nuisance alarms are a rare but possible occurrence, and have numerous potential causes that do not relate in any way to a defect in the product. We note that alarms must be cleaned on a regular basis to keep them free of dust and debris, in accordance with the instructions in the user manual. They must also be placed away from vents and fans, as instructed by the user manual. Improper maintenance or placement are often the cause of such false alarms. This consumer has already contacted Kidde to receive free replacements. If that does not satisfy the consumer, we kindly ask that the consumer contact our customer service department so that we may work with them to ensure that they are satisfied with our products, including replacing any alarms that are not meeting expectations free of charge, perhaps with a different model that may be a better fit for the customer’s use. 1 (800) 880-6788 or https:///https://www.kidde.com/home-safety/en/us/support/ We also dispute the consumer’s statement that these units have a high rate of failure, as Kidde has sold millions of these units, and have an extremely low return rate.

CPSC report 20241011-1135D-2147336030. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Oct 4, 2024, sent to the company Oct 9, 2024, published by CPSC Oct 24, 2024

The product, in the report: Kidde Photoelectric Smoke/CO Alarm with Voice and Wireless (Model P40 10DCSCO-W)

I would like to report Kidde Smoke/CO Alarm with Voice and Wireless (model P40 10DCSCO-W). We had 7 detectors installed by our electrician around November 2023 after a recent home addition. Ever since installation, we have had near weekly false alarms. I followed instructions for possible interference (bad placement and/or needing to spray with compressed air). Nothing worked. After a week in September 2024 of 2-3 false alarms per day (often at 2am), I finally disabled the the 2-3 devices I though may be offending. Other neighbors have reported issues with these or similar alarms since this style of detector is required by County code as part of any permitted home improvements. Reviews on the Kidde website report similar experiences and 1 star reviews. While I fortunately cannot speak to whether these alarms identify true positives with fires (or CO2), I believe the false alarms create a safety issue by inuring or desensitizing consumers in to thinking alarms are not alerting them to and actual fire/CO2 or other unsafe event.

Model
Model P40 10DCSCO-W
UPC
unknown
Serial number
2558-7101-01
Where
Bethesda, Maryland: Home/Apartment/Condominium
Who was involved
Unspecified
The reporter’s relation to them
Unspecified
As this report names them
Brand Kidde, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(10/21/2024) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products comply with the rigorous standards set by Underwriters Laboratories for performance and reliability.
Nuisance alarms are a rare but possible occurrence, and have numerous potential causes that do not relate in any way to a defect in the product. We note that alarms must be cleaned on a regular basis to keep them free of dust and debris, in accordance with the instructions in the user manual. Improper maintenance or placement are often the cause of such false alarms. They must also be placed away from vents and fans, as instructed by the user manual. We note that this customer installed these units after a home renovation. This indicates the likelihood of a dusty environment, which is one of the main causes of nuisance alarms. This consumer has already contacted Kidde to receive free replacements. If that does not satisfy the consumer, we kindly ask that the consumer contact our customer service department so that we may work with them to ensure that they are satisfied with our products, including replacing any alarms that are not meeting expectations free of charge, perhaps with a different model that may be a better fit for the customer’s use. 1 (800) 880-6788 or https:///https://www.kidde.com/home-safety/en/us/support/ We also dispute the consumer’s statement that these units have a high rate of failure, as Kidde has sold millions of these units, and have an extremely low return rate.

CPSC report 20241004-18873-2147336156. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Oct 2, 2024, sent to the company Nov 12, 2024, published by CPSC Nov 26, 2024

The product, in the report: Hard wired, photo-electric smoke/CO detectors, with 10-year battery back-up

Within 6 months of installing the detectors in his home, they began giving false alarms.
The consumer contacted the manufacturer to report his concerns. The manufacturer’s recommendation was to clean the detectors, but they did not instruct how they should be cleaned.The consumer saw that a different manufacturer’s brand, recommended to take theirs apart to blow out the smoke chambers. He tried that with the ones he owns and still had the same problem.
The consumer consulted his local fire department and one of the firemen suggested that he vacuum them. He purchased a product that enabled him to vacuum them, but that did not address the problem. Even after vacuuming the detectors, the continued giving false alarms. The frequency of the false alarms varies. Sometimes, a few months will pass before they alarm and in other cases, this can happen every few days.Sometime the detectors will alarm and by the time he reaches the detector, they will cease alarming. However, the issue has become more frequent lately.He spent $650 to purchase 10 of these detectors. He plans to purchase a different brand of detectors for around $1200.

Model
P4010ACSCO
Bought from
Home Depot, Massachusetts
Bought
Jul 1, 2020, about then
Where
Hopedale, Massachusetts: Home/Apartment/Condominium
Who was involved
Male
The reporter’s relation to them
Unspecified
As this report names them
Brand Kidde, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(11/22/2024) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products comply with the rigorous standards set by Underwriters Laboratories for performance and reliability.
Nuisance alarms are a rare but possible occurrence, and have numerous potential causes that do not relate in any way to a defect in the product. We note that alarms must be cleaned on a regular basis to keep them free of dust and debris, in accordance with the instructions in the user manual and as provided on the Kidde website. Improper maintenance or placement are often the cause of such false alarms. They must also be placed away from vents and fans, as instructed by the user manual. In any event, we kindly ask that the consumer contact our customer service department so that we may work with them to ensure that they are satisfied with our products, including replacing any alarms that are not meeting expectations free of charge, perhaps with a different model that may be a better fit for the customer’s use. 1 (800) 880-6788 or https:///https://www.kidde.com/home-safety/en/us/support/

CPSC report 20241002-1EA16-4931588. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Sep 27, 2024, sent to the company Oct 1, 2024, published by CPSC Oct 16, 2024

The product, in the report: Kiddie P4010ACSCO_w_2581 AC/DC Hardwired Intelligent Wire-Free Interconnect Smoke and Carbon Monoxide Alarm with with Indoor Air Quality Monitor and 10-Year Sealed Battery Backup

Kiddie P4010ACSCO_w_2581 products keep giving false fire alarms. When you start digging into online reviews a lot of others are also complaining about the same thing. The other odd thing is its always in the middle of the night around the same time at least for me. but others have noted the same issues. I’ve had two back to back nights of false alarms... but its happening at least once a month randomly. I’ve followed the directions as well on how to clean them from Kiddie doesn’t seem to help. I’ve swapped alarm placement to see if that helps no luck.
UPDATED ON 9/30/2024: [Update to my ticket. Yet another false alarm. That’s three days in a row. Before you can do anything the alarm will go off say fire then before you could even hush it it stops like nothing ever happened.
Absolutely horrible this product allowed to be installed. ]

Model
P4010ACSCO_w_2581
Where
Randolph, New Jersey: Home/Apartment/Condominium
Who was involved
Unspecified
The reporter’s relation to them
Unspecified
As this report names them
Brand Kiddie, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(10/7/2024) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products comply with the rigorous standards set by Underwriters Laboratories for performance and reliability.
Nuisance alarms are a rare but possible occurrence, and have numerous potential causes that do not relate in any way to a defect in the product. We note that alarms must be cleaned on a regular basis to keep them free of dust and debris, in accordance with the instructions in the user manual. Improper maintenance or placement are often the cause of such false alarms. They must also be placed away from vents and fans, as instructed by the user manual. This consumer has already contacted Kidde to receive free replacements. If that does not satisfy the consumer, we kindly ask that the consumer contact our customer service department so that we may work with them to ensure that they are satisfied with our products, including replacing any alarms that are not meeting expectations free of charge, perhaps with a different model that may be a better fit for the customer’s use. 1 (800) 880-6788 or https:///https://www.kidde.com/home-safety/en/us/support/ We also dispute the consumer’s statement that these units have a high rate of failure, as Kidde has sold hundreds of thousands if not millions of these units, and have an extremely low return rate. We also would like to correct the customer’s assertion that this model is associated with a recall, which is not accurate.

CPSC report 20240927-6970C-2147336277. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Sep 11, 2024, sent to the company Nov 20, 2024, published by CPSC Dec 5, 2024

The product, in the report: Hardwired 10-year combination smoke and carbon monoxide detector

(06/01/2024) The consumer stated that she has eight of the detectors and they were installed in June. They all go off at the same time for no reason. This has happened about five times since they were installed.
The consumer’s installer contacted the firm and was advised that there is nothing wrong with the unit, but they are extremely sensitive, and it could be dust.

Model
Intelligent Combo model P4010ACSCO
Bought from
Home Depot, New Jersey
Bought
May 4, 2024, about then
Where
Lambertville, New Jersey: Home/Apartment/Condominium
Who was involved
Female
The reporter’s relation to them
Self
As this report names them
Brand Kidde, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Incident, No Injury

CPSC report 20240911-21F96-4905987. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Aug 9, 2024, sent to the company Aug 21, 2024, published by CPSC Sep 5, 2024

The product, in the report: Kidde Wireless Smoke Detector, 10-Year Battery, Voice Alerts, Photoelectric Sensor Wire-Free Smoke Alarm, White

Kidde P4010ACS hardwired smoke/carbon monoxide alarms have a high failure rate. Out of the 4 units in my house, three have multiple false alarms. Units manufactured in August of 2022, made in China, and installed 12/2022. False alarms started in summer of 2023 with two units. Both were removed and cleaned with compressed air. Multiple false alarms throughout the winter of 2023 with cleanings after. Third unit started false alarms in the spring of 2024, were cleaned and reset. After several false alarms, the third unit was removed and reset and it false alarmed in my hand indicating smoke was detected. Most instances occurred between 1AM and 3AM. Two of the smoke alarms have been removed and are sitting on my desk leaving the upstairs bedrooms without a smoke alarms. [REDACTED] reviews indicate false smoke alarms are common with this model. Kidde is willing to warranty the units but are sending the same models with known issues. Replacements are going to be 7-10 business days - there is a concern the house is without proper smoke alarms for almost 2 weeks and the replacements are of poor quality.

Model
P4010ACS
UPC
047871273201
Serial number
N/A
Bought from
Home Depot
Bought
Dec 14, 2022, about then
Where
Wilmington, Massachusetts: Home/Apartment/Condominium
Who was involved
Unspecified
The reporter’s relation to them
Unspecified
As this report names them
Brand Kidde, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(8/22/2024) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products comply with the rigorous standards set by Underwriters Laboratories for performance and reliability.
Nuisance alarms are a rare but possible occurrence, and have numerous potential causes. We note that alarms must be cleaned on a regular basis to keep them free of dust and debris, in accordance with the instructions in the user manual. Improper maintenance or placement are often the cause of such false alarms. This consumer has already contacted Kidde and will receive free replacements. If that does not satisfy the consumer, we kindly ask that the consumer contact our customer service department so that we may work with them to ensure that they are satisfied with our products, including replacing any alarms that are not meeting expectations free of charge, perhaps with a different model that may be a better fit for the customer’s use. 1 (800) 880-6788 or https:///https://www.kidde.com/home-safety/en/us/support/ We also dispute the consumer’s statement that these units have a high rate of failure, as Kidde has sold hundreds of thousands if not millions of these units, and have an extremely low return rate.

CPSC report 20240809-D239D-2147337372. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Jul 10, 2024, sent to the company Jul 15, 2024, published by CPSC Jul 30, 2024

The product, in the report: Smoke/CO2 Alarm model P4010ACSCO-WF

I purchased 6 Kidde Smoke/CO2 Alarms and I’m constanlty getting false alarms. I just went to the [REDACTED] Site and I’m seeing I’m not alone and it’s not an isolated event. These products, given the function they are preforming, should be recalled. I have the model P4010ACSCO-WF units

Model
model P4010ACSCO-WF
Where
Larose, Louisiana: Home/Apartment/Condominium
Who was involved
Unknown
The reporter’s relation to them
Unspecified
As this report names them
Brand Kidde, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(7/22/2024) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products comply with the rigorous standards set by Underwriters Laboratories for performance and reliability.
Nuisance alarms are a rare but possible occurrence, and have numerous potential causes. We note that alarms must be cleaned on a regular basis to keep them free of dust and debris, in accordance with the instructions in the user manual. Improper maintenance or placement are often the cause of such false alarms. We kindly ask that the consumer contact our customer service department if they have not done so already so that we may work with them to ensure that they are satisfied with our products, including replacing any alarms that are not meeting expectations free of charge, perhaps with a different model that may be a better fit for the customer’s use. 1 (800) 880-6788 or https:///https://www.kidde.com/home-safety/en/us/support/

CPSC report 20240710-5E11A-2147338093. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Jul 1, 2024, sent to the company Jul 5, 2024, published by CPSC Jul 22, 2024

The product, in the report: It’s intended to be a smoke/CO2 alarm, model P4010ACSCO-W.

Kidde P4010ACSCO-W alarms during periods of high humidity, like most of the summer in Baltimore. This has led me to remove these devices from service so I can actually sleep at night. I hope I don’t burn in a fire because of their negligence. Looking at their reviews, a lot of people have a similar problem. I haven’t been injured beyond having them steal my money for a defective product that should be recalled.

Model
P4010ACSCO-W
Serial number
N/A
Bought from
Home Depot, Maryland
Bought
Mar 1, 2020, about then
Where
Baltimore, Maryland: Home/Apartment/Condominium
Who was involved
Unknown
The reporter’s relation to them
Unspecified
As this report names them
Brand Kidde, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(7/22/2024) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products comply with the rigorous standards set by Underwriters Laboratories for performance and reliability.
Nuisance alarms are a rare but possible occurrence, and have numerous potential causes. We note that alarms must be cleaned on a regular basis to keep them free of dust and debris, in accordance with the instructions in the user manual. Improper maintenance or placement are often the cause of such false alarms. We kindly ask that the consumer contact our customer service department if they have not done so already so that we may work with them to ensure that they are satisfied with our products, including replacing any alarms that are not meeting expectations free of charge, perhaps with a different model that may be a better fit for the customer’s use. 1 (800) 880-6788 or https:///https://www.kidde.com/home-safety/en/us/support/

CPSC report 20240701-A880F-2147338274. Submitter: Consumer Search for it on SaferProducts.gov
No incident, no one hurt
Made May 31, 2024, sent to the company Jun 13, 2024, published by CPSC Jun 28, 2024

The product, in the report: Smart Smoke and Carbon Monoxide Detector with Indoor Air Quality Monitor, Hardwired, 10-Year Lithium Backup Battery

I purchased a kidde smoke/fire/carbon monoxide detector with WiFi. The detectors have had numerous false alarms. A total of 7 separate times since I have owned them Since October 2023. In all cases there were no signs of smoke or smell, however they went off when there was high humidity. They have been cleaned occasionally. Upon research if appears others have experienced the same issue. The frequent smoke alarm initiation make one more complacent resulting in a higher potential for life and death.

Model
P4010ACSCOAQ-WF
Bought from
Home Depot online
Bought
Oct 19, 2023
Where
Mystic, Connecticut: Home/Apartment/Condominium
Who was involved
Age 57, Male
The reporter’s relation to them
Self
As this report names them
Brand Kidde, made or sold by UTC Fire & Security
How badly, in CPSC’s words
No Incident, No Injury

The company’s comments, in its own words

(6/26/2024) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products comply with the rigorous standards set by Underwriters Laboratories for performance and reliability.
Nuisance alarms are a rare but possible occurrence, and have numerous potential causes. We note that alarms must be cleaned on a regular basis to keep them free of dust and debris, in accordance with the instructions in the user manual. Improper maintenance or placement are often the cause of such false alarms. We see that the consumer has been in contact with Kidde for replacement units. We trust that this will resolve the matter to the customer’s satisfaction, but if it does not, we kindly ask that the consumer contact our customer service department again so that we may work with them to ensure that they are satisfied with our products, including replacing any alarms that are not meeting expectations free of charge, perhaps with a different model that may be a better fit for the customer’s use. 1 (800) 880-6788 or https:///https://www.kidde.com/home-safety/en/us/support/

CPSC report 20240531-163B2-2147338883. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Feb 13, 2024, sent to the company Feb 27, 2024, published by CPSC Mar 12, 2024

The product, in the report: Kiddie model KN-COSM-B-RF dual smoke carbon monoxide detector

Came home today my combo smoke carbon dioxide detector was chirping a low battery warning. This is a Kiddie model KN-COSM-B-RF the old batteries were about 6 months old, when I installed new AA batteries 3ea and put the unit back on the ceiling it wouldnt test when I pressed the test button. Alarm felt warm, so I removed again from the ceiling and the unit was very hot by then. Popped out the batteries thinking they were bad out of the package, but 2nd set of new batteries immediately got very hot. Popped out batteries and will not be reinstalling this alarm. I do have another of the same model Kiddie combo smoke carbon monoxide detectors in the house. Im not thinking this is a safe condition the heat produced could have set the ceiling on fire in my home

Model
KN-COSM-B-RF
UPC
Unknown
Serial number
None
Bought from
Home Depot
Bought
Jul 31, 2020
Where
Bayport, New York: Home/Apartment/Condominium
Who was involved
Unspecified
The reporter’s relation to them
Unspecified
As this report names them
Brand Kiddie, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(3/7/2024) UTC Fire & Security : At Kidde, we take home safety very seriously, which is why all of our products are certified to the rigorous and exacting standards set by Underwriters Laboratories for safety, reliability and performance.
Smoke and CO alarms may emit heat as part of their normal operation. This heat does not pose a threat of fire or property damage to the consumer. We encourage the customer to reach out to Kidde Customer Service if the product is not living up to their expectations, and we will be happy to replace the unit free of charge. https://www.kidde.com/home-safety/en/us/support/

CPSC report 20240213-983DF-2147341017. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Feb 1, 2024, sent to the company Feb 5, 2024, published by CPSC Feb 20, 2024

The product, in the report: Kidde Combination Smoke/CO Alarm Model # KN-COSM-IB

On Jan 30th, 2024, I was replacing the low battery in my Kidde Combination Smoke/CO Alarm Model KN-COSM-IB when I noticed the manufacturing date 2013, Oct 17. I started researching if it has a lifespan and if it should be replaced. That is when I learned about a safety recall notice - https://www.cpsc.gov/Recalls/2017/Kidde-Recalls-Combination-Smoke-CO-Alarms. I learned from the recall notice that after the end of their life, these alarms are supposed to chirp until they are replaced. I contacted customer service, and they refused to replace these units even though they are faulty and have failed to notify me and my family that they should have been replaced after their end of life. I have two of these units installed in my house, and I was under the wrong impression they were working and saving my life. Even though the manufacturing date is later than what is mentioned in the recall notice, they are the same model with the same issue. Clearly, this company hadn’t stopped making and selling this faulty model even after the dates mentioned in the recall notice, and my two units prove it so. They were supposed to chirp after the end of their life, and they haven’t. I have been replacing the battery whenever there was a chirp for low battery, and they have been quiet after the replacement. It seems even the units made after the date in the recall notice of this model have the same problem. Can something be done about this faulty and dangerous product that fails to notify its owners that it has reached the end of its life and needs replacement? I request you to look into this and help me get them replaced. Thanks...

Model
Kidde Combo Smoke/CO Alarm Model # KN-COSM-IB
UPC
2508-7162-00
Serial number
2508-7102-02
Where
Robbinsville, New Jersey: Home/Apartment/Condominium
Who was involved
Unspecified
The reporter’s relation to them
Unspecified
As this report names them
Brand Kidde, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(2/8/2024) UTC Fire & Security : At Kidde we take fire safety very seriously. That is why all of our products are designed to meet the rigorous standards set by Underwriters Laboratories for performance and reliability.
The unit in question was not affected by the referenced recall. Affected units were manufactured between 2004 and 2010. The 2013 unit was an updated model produced well after the recall, and the update corrected any issue(s) that led to the recall in the first place. Second, the End of Life (EOL) notification feature triggers 10 years after the alarm is initially activated, not 10 years after the date of manufacture. This customer appears to have 1 of 2 things occurring with his unit -
1) Depending on when he powered up the alarm the 1st time – He is now or will soon reach his actual End of Life. The unit will sound intermittently for a period of time indicating End of Life, and the unit will need to be replaced. This does not fall under a warranty or recall replacement 2) If he activated the alarm less than 10 years ago, he is experiencing a true low battery situation and needs to replace his batteries, but he will soon reach his EOL as well and will need to replace the unit. The low battery chirp and EOL chirp sound different from each other as noted below. The customer can find more detail in the user manual, which is available online, or by contacting Kidde customer service.
LOW BATTERY - the unit will “chirp” one time every minute and will continue for at least seven days.
EOL - the unit will “chirp” twice every thirty seconds.
This customer has presented no evidence that his unit is malfunctioning or part of a recall. If he has any further questions, we suggest he contact Kidde customer service for additional support.
https://www.kidde.com/home-safety/en/us/support/

CPSC report 20240201-C96AC-2147341331. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Dec 30, 2023, sent to the company Jan 16, 2024, published by CPSC Jan 30, 2024

The product, in the report: Model P3010K-CO

Hello...moved into my new home one year ago and in that year, we have had several false alarms with your model P3010-CO alarm. We purchased 7 alarms from Home Depot in Southern California. They beep 3 times repeatedly and none during the same incident, all separate days and times. They go off when we are Not running any of our brand new appliances or new heater. Please advise on replacements.

Model
P3010K-CO
Where
Huntington Beach, California: Home/Apartment/Condominium
Who was involved
Unknown
The reporter’s relation to them
Unspecified
As this report names them
Brand Kiddie, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(1/17/2024) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products comply with the rigorous standards set by Underwriters Laboratories for performance and reliability.
Nuisance alarms are a rare occurrence, but have numerous possible causes. We note that alarms must be cleaned on a regular basis to keep them free of dust and debris, which is often the cause of such alarms. Our customer service department will reach out to the customer so that we may work with them to ensure that they are satisfied with our products, including replacing any alarms that are not meeting expectations free of charge, and retrieving their units for further testing in our lab. (1/17/2024) UTC Fire & Security : As a follow up, Kidde shipped replacement units to the customer free of charge, which were delivered on 1/8/2024.

CPSC report 20231230-E25B3-2147343131. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Oct 4, 2023, sent to the company Oct 10, 2023, published by CPSC Oct 24, 2023

The product, in the report: White, round, ceiling mounted, 10 year lithium battery (sealed) smoke/carbon monoxide detector, Kiddie brand

Ceiling mounted, battery operated smoke/carbon monoxide detector (10 year sealed battery) caught fire during normal monitoring operations.

Model
P3010CU
UPC
none
Serial number
none
Where
Bourne, Massachusetts: Home/Apartment/Condominium
Who was involved
Unspecified
The reporter’s relation to them
Unspecified
As this report names them
Brand Kiddie, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(10/11/2023) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products comply with the standards set by Underwriters Laboratories for performance and reliability.
This incident may have been the result of an electrical surge. In any event, our customer service department will reach out to the customer so that we may work with them to ensure that they are satisfied with our products, including replacing any alarms that are not meeting expectations free of charge, and retrieving their units for further testing in our lab.

CPSC report 20231004-15FA3-2147344846. Submitter: Public Safety Entity Search for it on SaferProducts.gov
No one hurt
Made Oct 4, 2023, sent to the company Oct 6, 2023, published by CPSC Oct 23, 2023

The product, in the report: Second KN-COSM-IB Combination Smoke/CO Alarm chirping non-stop after battery replace.

Two of two KN-COSM-IB combination smoke & carbon monoxide alarm that started chirping I went ahead and replace the alarm. Afterwards saw the Kidde Recalls Combination Smoke/CO Alarms Due to Alarm Failure for the KN-COSM-IB alarms.

Model
820-1710 Rev. B
UPC
No UPC Code on
Serial number
No serial number on alarm
Where
Huntsville, Alabama: Home/Apartment/Condominium
Who was involved
Unknown
The reporter’s relation to them
Unspecified
As this report names them
Brand Kidde, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(10/11/2023) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products comply with the standards set by Underwriters Laboratories for performance and reliability.
Nuisance alarms are a rare occurrence, but have numerous possible causes. We note that alarms must be cleaned on a regular basis to keep them free of dust and debris, which is often the cause of such alarms. Our customer service department will reach out to the customer so that we may work with them to ensure that they are satisfied with our products, including replacing any alarms that are not meeting expectations free of charge, and retrieving their units for further testing in our lab.

CPSC report 20231004-376D6-2147344857. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Sep 10, 2023, sent to the company Sep 12, 2023, published by CPSC Sep 26, 2023

The product, in the report: Smoke and Carbon monoxide alarm - hard wired

Smoke Detector randomly goes off. Sometimes in the middle of the night. Sometimes during the day. Received a replacement from the company and have the same issues.

Model
Model P4010ACSCO-WF
UPC
2581-7108-00
Bought from
Home Depot
Bought
Feb 1, 2023, about then
Where
ABINGTON, Massachusetts: Home/Apartment/Condominium
Who was involved
Unspecified
The reporter’s relation to them
Unspecified
As this report names them
Brand Kiddie, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(9/14/2023) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products comply with the standards set by Underwriters Laboratories for performance and reliability.
Nuisance alarms are a rare occurrence, but have numerous possible causes. We note that alarms must be cleaned on a regular basis to keep them free of dust and debris, which is often the cause of such alarms. We kindly ask that the consumer contact our customer service department so that we may work with them to ensure that they are satisfied with our products, including replacing any alarms that are not meeting expectations free of charge, perhaps with a different model that may be a better fit for the customer’s use. 1 (800) 880-6788 or https:///https://www.kidde.com/home-safety/en/us/support/

CPSC report 20230910-73EDE-2147345284. Submitter: Consumer Search for it on SaferProducts.gov
No incident, no one hurt
Made Apr 17, 2023, sent to the company Apr 20, 2023, published by CPSC May 4, 2023

The product, in the report: Combination smoke and carbon monoxide detector, round, white.

A pot was left on the stove and burned around 7 feet from the detector and failed to activate when the pot began smoking. Both floors of the house were filled with smoke.

Model
P3010CU
Where
Indianapolis, Indiana: Home/Apartment/Condominium
Who was involved
Age 17, Unspecified
The reporter’s relation to them
My Child
As this report names them
Brand Kidde, made or sold by UTC Fire & Security
How badly, in CPSC’s words
No Incident, No Injury

The company’s comments, in its own words

(5/5/2023) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products comply with the standards set by Underwriters Laboratories for performance and reliability.
There are numerous reasons why a smoke alarm may not sound, including lack of maintenance, improper placement, or insufficient build-up of smoke, all as outlined in the user manual. As the customer did not provide contact information, we urge them to contact Kidde’s customer service department at 1-800-880-6788 (Monday-Friday 8:00 AM - 10:00 PM and Saturday 9:00 AM - 5:00 PM ET) so that we may work with the consumer to ensure that they are satisfied with our products, including replacing any alarms that are not meeting expectations, free of charge. And just as important, we would like to retrieve the alarm in question, again free of charge, for testing and inspection in our lab to determine root cause for the issue in question.

CPSC report 20230417-68D84-2147348064. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Mar 1, 2023, sent to the company Mar 20, 2023, published by CPSC Apr 4, 2023

The product, in the report: 10-yr smoke/CO alarm

Faulty Kidde smoke/CO alarms. I purchased 12 Kidde smoke/CO (10-yr battery) alarms in Aug 2019 for apartments. a few months ago, one of them started to continuously give alarm and would not reset. Tenant got frustrated and destroyed it. A few days ago, ANOTHER alarm started going off. I recovered it and saw it would not turn off. I called Kidde and they said I need to “blow compressed air through the alarms once a year”! I told them this is an unacceptable condition for such an alarm but he downplayed it. I asked for replacements for all of the alarms because I did not want tenants calling me at different times about failed alarms but he said he could only replace the two and I should call them if more fail. I believe this is a safety issue that may be product-wide and might require a recall. My alarm is Kidde Model P3010CU and the date on its back is “2019 Aug.19”

Model
P3019CU
Serial number
2555-7132-00 RevA
Bought from
Amazon.com
Bought
Oct 25, 2019, about then
Where
Lynnwood, Washington: Home/Apartment/Condominium
Who was involved
Unknown
The reporter’s relation to them
Unspecified
As this report names them
Brand Kidde ALWAYS ON, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(4/18/2023) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products comply with the standards set by Underwriters Laboratories for performance and reliability.
All smoke alarms require regular maintenance in order to work properly, as discussed thoroughly in the user manual. Dust and debris can gather within the unit, and must be removed at regular intervals to prevent the sensor from false alarming. The unit must allow for air flow in order to sense smoke, therefore the unit cannot be completed closed off to prevent dust and debris, as that would restrict air flow and smoke sensing as well. This is standard across the industry, and not a sign of a defective product. As discussed with our customer service team, Kidde will replace free of charge any unit that the customer claims is false alarming.

CPSC report 20230301-6FC2C-2147349124. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Oct 15, 2022, sent to the company Oct 18, 2022, published by CPSC Nov 1, 2022

The product, in the report: Kidde combination Smoke and Carbon Monoxide detector

Kidde Smoke detector didn’t alarm (model # KN-COSM-BA), when room filled with smoke due to very smoke fire in stove that caused smoke to fill the room.

Model
KN-COSM-BA
Bought from
Home Depot
Where
Richland, Washington: Home/Apartment/Condominium
Who was involved
Unspecified
The reporter’s relation to them
Unspecified
As this report names them
Brand Kidde, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(11/1/2022) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products comply with the standards set by Underwriters Laboratories for performance and reliability.
In the current case, Kidde has been in contact with the customer and is replacing the unit(s) in question free of charge. We will also receive the unit(s) in our testing lab for further analysis to determine root cause, if any, or if the units are performing to UL standards.

CPSC report 20221015-FD40D-2147353325. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Oct 6, 2022, sent to the company Oct 26, 2022, published by CPSC Nov 9, 2022

The product, in the report: More than one of my Kiddie wired smoke and carbon monoxide detectors (Model P4010ACSCO-W)

After having several Kiddie wired smoke and carbon monoxide detectors (Model P4010ACS-W) professionally installed costing me a couple of thousand dollars to my 2744 sq ft home less than 6 months ago, I have had half of these alarms randomly go off and on even several times after canceling the alarms to confirm no threat was present. I have had to call the fire department who even they struggled to silence the alarm and only did so after permanently deactivating it. I find this to be a serious threat to my children’s safety and my own. Each one of my household members have sensory processing disorder associated with being autistic,one member has PTSD and other an anxiety disorder. Each time these alarms fault causing my entire household significant distress and scared my 4 year old so bad when the alarm by our stairs went off as we were going up the stairs and she would have fallen down the stairs had I not been behind her to catch her. No physical injuries resulted from any of the 5 occurences that we have experienced with these kiddie alarms. One of the occurrences happened as a result of me blowing of some minor dust from hanging a picture near the device’s alarm.
I believe we are risk and that this product is dangerous because these detectors are marketed to warn it’s consumors when faced with an applicable threat. At this point I have zero confidence in these alarms because if they randomly go off what’s to say that these will be effective

Model
P4010ACSCO-W
UPC
UNk
Serial number
SAK255699999
Bought from
JME Electric LLC
Bought
Apr 6, 2022
Where
Gloversville, New York: Home/Apartment/Condominium
Who was involved
Age 4, Female
The reporter’s relation to them
My Child
As this report names them
Brand Kiddie, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(11/8/2022) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products comply with the standards set by Underwriters Laboratories for performance and reliability.
Nuisance alarms are a rare occurrence, but have numerous possible causes. We note that alarms must be cleaned on a regular basis to keep them free of dust and debris, which is often the cause of such alarms. We ask that the consumer contact our customer service department so that we may work with them to ensure that they are satisfied with our products, including replacing any alarms that are not meeting expectations free of charge. 1 (800) 880-6788 or https://www.kidde.com/fire-safety/en/ca/locator/contact-us/

CPSC report 20221006-1FE6E-2147353454. Submitter: Consumer Search for it on SaferProducts.gov
No incident, no one hurt
Made Sep 9, 2022, sent to the company Sep 21, 2022, published by CPSC Oct 5, 2022

The product, in the report: Kidde 10 Year Smoke and Carbon Monoxide Alarm Model P3010CU

Kidde Smoke and Carbon Monoxide alarms fail reporting false positives at a near 100% rate. I have had at least 5 of these units fail in my house over the past 4 years. These are very expensive units, approx $50 each, and I have at least 5 locations in my home with units installed. These units fail at random, reporting false positive results at complete random times, most recently this morning at 2 am. The only recourse is to permanently disable the unit, following the instructions on the back of the unit, as if this exact event is not only not surprising but expected by the manufacturer. This has resulted in, best case scenario waking up my entire family in the middle of the night hearing a fire alarm, to the more extreme of a full fire department response and searching of the house, wasting time and resources for this garbage, expensive product. Just searching your database, this appears to be a frequent occurrence for this product, despite the company calling it “rare.” I have previously contacted the company about this problem, and they have replaced the units at no cost. However when the products continue to fail, they question the install location, the environmental causes and anything else to deflect responsibility, despite the product apparently working perfectly fine at first. And that leads me to my most important concern, does this product even work at all? I have no way of knowing and absolutely zero confidence that it will report accurate positive warnings when it fails so reliably reporting false positives. Get this garbage product off the market before it kills people. And please spare me the indignity of responding to this complaint with this standard word soup that can be found throughout this database: “It is Kidde’s mission to help protect people and property from fire and its related hazards. We are committed to engineering and manufacturing quality products, which is why all of Kidde’s products meet or exceed the strict third-party standards set by Underwriter’s Laboratories (UL), an independent, not-for-profit testing agency. In the rare occurrence of an incident such as the one reported, we request that the customer supply us with the alarm identified in their report and information regarding the incident. We will then conduct a thorough examination of the alarm in order to identify any potential issue with the alarm and required corrective actions, if any.” Well done corporate lawyer, you’ve really covered the landscape there and accepted zero responsibility. I am done with this manufacturer. I do not trust them or their products. My only recourse now is to find another manufacturer in a consolidated market with few options. My choices are limited and it will be costly, but this manufacturer has proven to be completely untrustworthy.

Model
P3010CU
UPC
Not available
Serial number
S1816 Issue No. 0009100
Bought from
Home Depot
Bought
May 25, 2019
Where
Falls Church, Virginia: Home/Apartment/Condominium
Who was involved
Age 52, Unspecified
The reporter’s relation to them
Self
As this report names them
Brand Kidde by United Technologies, made or sold by UTC Fire & Security
How badly, in CPSC’s words
No Incident, No Injury

The company’s comments, in its own words

(10/4/2022) UTC Fire & Security : Kidde apologizes for the frustration experienced by this customer. False alarms, while rare, can occur for a number of reasons, the vast majority of which do not indicate a faulty device. Kidde customer support will reach out to this customer to see if replacing the unit(s) with a different model may rectify the matter, at no additional cost.

CPSC report 20220909-B9038-2147353954. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Sep 7, 2022, sent to the company Sep 14, 2022, published by CPSC Sep 28, 2022

The product, in the report: Kidde Combination Smoke and Carbon Monoxide Alarm, Model KN-COSM-IBA. I do not see a serial number on these alarms but the do have manufacture dates: 2020, Sept. 28,

On several occasions over the last couple months I have been experiencing multiple false fire alarms and fire alarms chirping. I have replaced batteries in every smoke alarm twice in the last month, cleaned every smoke alarm at least once and some 2 and 3 times but I am still having false alarms and alarms chirping. After reviewing the ratings on the Kidde website for this combination smoke and carbon monoxide alarm it appears there is a wide spread issue with what I am experiencing, false alarms and chirping alarms. In the last 2 weeks my family and I have been woken up in the middle of the night with 2 false alarms, i.e. several loud beeps followed by “FIRE, FIRE, FIRE” several times and then repeated and there was not a fire. We have “experienced” 5 times in the last 2 weeks were 1 of 2 different alarms was chirping. Out of the 7 fire alarms I have installed in the house, 2 have triggered false alarms and 2 have been chirping, one of which also triggered a false alarm. It appears that I have at least 3 bad fire alarms out of the 7. After contacting Kidde this morning they said they will provide me with 3 new alarms to replace the ones I have been having issues with. The part that really makes me mad is they said it will take 10 to 15 days or possibly more and when I asked them what I should do until the new alarms arrive I was advised to remove the troublesome alarms by disconnecting them from the house power and remove the batteries. Doing this would remove the ability to possibly detect a fire in these locations with the smoke alarms removed!!! That is if they even work.

Model
KN-COSM-IBA
Bought
Feb 1, 2021, about then
Where
Bigfork, Montana: Home/Apartment/Condominium
Who was involved
Unspecified
The reporter’s relation to them
Self
As this report names them
Brand Kidde, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(9/27/2022) UTC Fire & Security : At Kidde we take residential fire safety very seriously, which is why all of our products comply with the standards set by Underwriters Laboratories for performance and reliability.
In the current case, there are numerous reasons for nuisance alarms. We note that alarms must be cleaned on a regular basis to keep them free of dust and debris, which is often the cause of nuisance alarms. As the customer stated that Kidde has already agreed to replace the alarms, we suggest giving the new alarms some time to see if this resolves the matter. If it does not, we ask the customer to contact Kidde again so that we may propose an alternative solution to the customer’s satisfaction, such as a different model alarm. Kidde does not recommend removing all fire alarms while waiting for the new ones to arrive. We apologize if that was not made clear beforehand. 1 (800) 880-6788 or https://www.kidde.com/fire-safety/en/ca/locator/contact-us/

CPSC report 20220907-6E0B1-3890739. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Jun 5, 2021, sent to the company Jun 8, 2021, published by CPSC Jun 23, 2021

The product, in the report: Model KN-COSM-IB

The KN-COSM-IB product started chirping. Once every 30 seconds. I went to replace it, and saw this recall notice.

Model
KN-COSM-IB
Where
Chester, Maryland: Home/Apartment/Condominium
Who was involved
Unspecified
The reporter’s relation to them
Unspecified
As this report names them
Brand Kidde, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(6/16/2021) UTC Fire & Security : It is Kidde’s mission to protect people and property from fire and its related hazards. That is why our products meet or exceed voluntary safety standards set by Underwriters Laboratories. In this instance, we ask the affected consumer to contact Kidde’s customer service group (https://www.kidde.com/home-safety/en/us/locator/contact-us/) to discuss the issue and resolve the matter. We apologize for any inconvenience this may have caused the consumer.

CPSC report 20210605-187A3-2147363699. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Jan 5, 2021, sent to the company Jan 27, 2021, published by CPSC Feb 10, 2021

The product, in the report: Smoke and monoxide combo

Constant chirping replaced with new battery but continues to chirp every few seconds

Model
KN-COSM-IB
UPC
not available
Serial number
P/N# 820-1710 Rev A
Where
Chicago, Illinois: Home/Apartment/Condominium
Who was involved
Unspecified
The reporter’s relation to them
Unspecified
As this report names them
Brand Kidde, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(1/28/2021) UTC Fire & Security : It is Kidde’s mission to protect people and property from fire and its related hazards. That is why its products meet or exceed voluntary safety standards set by Underwriters Laboratories. In this instance, Kidde’s customer service group is reaching out to the consumer to discuss the issue and resolve the matter. We apologize for any inconvenience this may have caused the consumer.

CPSC report 20210105-76BD6-2147366735. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Dec 17, 2020, sent to the company Jan 13, 2021, published by CPSC Jan 29, 2021

The product, in the report: Kidde “Always On” smoke/CO detector

A Kidde “Always On” smoke and CO detector with a manufacturing date of “2016 May 16” failed to detect substantial kitchen smoke, and upon inspection failed to “test” when the center button was pushed. This is a 10-year detector, and should not fail but 4 1/2 years after consumer purchase!

Model
P3010K-CO
UPC
none on product
Serial number
none on product
Bought from
Lowes or Home Depot
Bought
Aug 1, 2016, about then
Where
Chapel Hill, North Carolina: Home/Apartment/Condominium
Who was involved
Unspecified
The reporter’s relation to them
Unspecified
As this report names them
Brand Kidde, made or sold by UTC Fire & Security
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(1/22/2021) UTC Fire & Security : It is Kidde’s mission to protect people and property from fire and its related hazards. That is why its products meet or exceed voluntary safety standards set by Underwriters Laboratories. In this instance, Kidde’s customer service group will reach out to the consumer to discuss the issue and provide guidance on next steps to resolve the matter. We apologize for any inconvenience this may have caused the consumer.

CPSC report 20201217-6B9E4-2147367405. Submitter: Consumer Search for it on SaferProducts.gov
Death
Made Dec 2, 2020, sent to the company Dec 17, 2020, published by CPSC Jan 5, 2021

The product, in the report: Kidde NightHawk talking combo smoke/CO alarm with model number KN-COSM-IB Recall number: 17-031

Kidde product combination Smoke/CO alarm Model # KN-COSM-IB with manufacture dates of 5/18/2008 and 4/07/2008 failed to alert an occupant of a dwelling in the [REDACTED] of an CO condition in the dwelling. The fire department was initially dispatched for someone’s mother who was unresponsive, there were also two lethargic cats that had vomited. The fire department responding found levels of 4,000 PPM of CO in the basement and 1,000 PPM on the first level of the dwelling. Upon investigation of the referenced CO/Smoke alarms it was found that they did not function when the test button was pushed. Detectors did show that they had AC power. The occupant was taken to the hospital and status is currently unknown.

Model
KN-COSM-IB
Where
Webster, New York: Home/Apartment/Condominium
Who was involved
Age 84, Female
The reporter’s relation to them
Unspecified
As this report names them
Brand Kidde, made or sold by UTC Fire & Security

The company’s comments, in its own words

(1/4/2021) UTC Fire & Security : Kidde thanks you for bringing this matter to our attention. We kindly ask that you contact our customer service department so that we may gather more information about this particular unit and investigate further. It would also be very helpful if we could inspect the unit in question. Please contact us at 1.800.880.6788, As no contact information was provided in the report. (1/6/2021) UTC Fire & Security : It is Kidde’s mission to protect people and property from fire and its related hazards. That is why Kidde’s products meet or exceed standards set by Underwriters Laboratories, an independent testing agency. In this instance, the alarm at issue was part of a recall announced in 2017. The recall was made in conjunction with the CPSC and was widely advertised. Furthermore, such alarms or to be replaced every 7 to 10 years, and this unit was manufactured over 12 years ago. We apologize for any inconvenience the consumer may have had as a result of this incident.

CPSC report 20201202-28C07-2147367748. Submitter: Local Government Agency Search for it on SaferProducts.gov

CPSC’s disclaimer

Disclaimer: CPSC does not guarantee the accuracy, completeness, or adequacy of the contents of the Publicly Available Consumer Product Safety Information Database on SaferProducts.gov, particularly with respect to information submitted by people outside of CPSC.

Word for word, from the disclaimer in CPSC’s export.

Sources

U.S. Consumer Product Safety Commission, SaferProducts.gov public database export.

Released Oct 28, 2026 and checked Oct 28, 2026. Updated daily. Public domain (U.S. Government work). CPSC asks to be credited, and that no endorsement be implied.

Reports of harm are from the U.S. Consumer Product Safety Commission (CPSC), on SaferProducts.gov. CPSC does not endorse Hearth Record.

Kidde smoke and carbon monoxide alarms

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