Panasonic microwave ovens

39 reports to CPSC, the latest made Jul 25, 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 Nov 5, 2026.

39reports to CPSC
Jul 25, 2026the latest report was made
Jun 13, 2011the earliest
34with the company’s comments

Brand: Panasonic
Maker: Panasonic Corporation of North AmericaMakers, importers or sellers, as the reports name them
Product: Microwave ovensCPSC’s product type: Microwave Ovens (code 264), in Kitchen: Appliances

Other ways the reports write the brand (3)

“Panasonic Genius”, “Panasonic Genius Sensor 1200” and “Panasonic Genus Microwave”

By month

2 reports from August 2025 to July 2026; the most in July 2026, 1. 37 earlier reports, since June 2011, are in the table.

The numbers, as a table

Reports to CPSC by the month each was made, newest first
Month	Reports
July 2026	1
April 2026	1
May 2025	1
June 2024	1
April 2024	1
May 2022	1
February 2022	1
April 2021	2
March 2021	1
October 2020	1
May 2020	1
January 2019	1
August 2018	1
July 2018	1
May 2017	1
March 2017	1
January 2017	2
March 2016	1
August 2015	1
February 2015	1
January 2015	1
November 2014	1
October 2014	1
March 2014	1
November 2013	1
August 2013	1
May 2013	1
December 2012	1
July 2012	2
April 2012	1
February 2012	2
January 2012	1
November 2011	1
June 2011	2

How badly anyone was hurt

Hospital admission 1 CPSC: Injury, Hospital Admission
Seen by a doctor or nurse 1 CPSC: Injury, Seen by Medical Professional
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
Not said 2 CPSC: Unspecified

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 Nov 5, 2026. Updated daily.

Hospital admission
Made Jul 25, 2026, sent to the company Jul 29, 2026, published by CPSC Aug 31, 2026

The product, in the report: Panasonic model number NN-SC668S

Microwave paint is peeling and particles have dropped on food and unable to eat it

Model
NN-SC668S
Bought from
Costco
Bought
Dec 31, 2019, about then
Where
San Gabriel, California: Home/Apartment/Condominium
Who was involved
Age 30, Unspecified
The reporter’s relation to them
My Child
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Injury, Hospital Admission

CPSC report 20260725-56F84-2147313395. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Apr 22, 2026, sent to the company Jul 30, 2026, published by CPSC Aug 13, 2026

The product, in the report: Panasonic Genus Microwave

The consumer noticed that bubbling was happening at the roof of her microwave. She noticed after cleaning and was afraid that when cooking her food, particles would fall into her and she would consume it. She does have pictures that she can mail in. She does not have an email address as she has to go into town to use the internet. She lives 75+ miles from town. She stated that she uses the product all the time. She has reported to manufacturer, but they have not said anything or done anything. She can provide more details once confirmation notice is sent out.

Model
NNSC67NS
Serial number
6HD4055031
Bought
Mar 1, 2025, about then
Where
Grangeville, Idaho: Home/Apartment/Condominium
Who was involved
Female
The reporter’s relation to them
Self
As this report names them
Brand Panasonic Genus Microwave, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Incident, No Injury

CPSC report 20260422-4EABB-6007182. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made May 14, 2025, sent to the company Jun 30, 2025, published by CPSC Jun 2, 2025

The product, in the report: Panasonic model NN-SB65NS microwave

We had a Panasonic model NN-SB65NS microwave delivered to our house by Walmart. It was kept on a counter top, minimaly used, and just under three months old.
Our twelve year old son attempted to make a bag of popcorn using the popcorn setting and the inside began to spark and smoke. He screamed for help and we came to his aid. The popcorn was on fire at this point and our kitchen had filled with smoke. After contacting support we do not feel the seriousness of the sparking issue is understood or believed. Pictures, info and receipt were sent and the unit is bagged.
I have been clear stating I am unable to ship the microwave to Panasonic Engineers to study. It was delivered for a reason. As you will see from the attached email screenshots, the incident will be closed if they are not sent the microwave carefully packaged. I do understand why this is important. It is also extremely important that consumers are kept safe and not belittled by corporations. While I don’t expect a refund anymore as I physically cannot lift their burned microwave. I expect the issue to be documented.
UPDATED ON 6/18/2025: [Our microwave sparked from the interior plate to the point the popcorn caught on fire. My 12yo was screaming for help, unplugged the unit, and singed his fingers on the microwave.
We have been belittled by Panasonic customer service and emailed by a legal representative who assumes our situation is not true and will delete the info if we don’t send the unit back. However, we are disabled and had the unit delivered and set up.
We are not asking for a refund. Only that this is investigated and nobody else goes through this. ]

Model
NN-SB65NS
Serial number
6H64203610
Bought from
Walmart.com
Where
Coon Rapids, Minnesota: Home/Apartment/Condominium
Who was involved
Age 12, Male
The reporter’s relation to them
Unspecified
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Incident, No Injury

CPSC report 20250514-A32F1-2147331321. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Jun 30, 2024, sent to the company Jul 2, 2024, published by CPSC Jul 17, 2024

The product, in the report: Panasonic 2.2cf 1250 wt Countertop Microwave Oven w/ Cyclonic Inverter Technology Color: Stainless Steel Size: 2.2 cf capacity Outside dimensions (WxHxD) 23 7/8” x 14” x 19 7/16”

Nicked edge of Panasonic Cyclonic Inverter microwave oven glass door with a dinner plate that was to be placed inside, and the right side of the exterior door glass (adjacent to control panel) exploded into countless tiny shards that shot across the kitchen counter and floor up to 8’ from the microwave.

Model
NN-SN97HS
UPC
8 85170 31595 2
Serial number
6F39120152
Bought from
Costco.com
Bought
Apr 14, 2019
Where
Bothell, Washington: Home/Apartment/Condominium
Who was involved
Age 63, Unknown
The reporter’s relation to them
Self
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Incident, No Injury

CPSC report 20240630-454B7-2147338295. Submitter: Consumer Search for it on SaferProducts.gov
Seen by a doctor or nurse
Made Apr 25, 2024, sent to the company Apr 26, 2024, published by CPSC May 17, 2024

The product, in the report: Panasonic Inverter Microwave

Fire in Microwave

Model
NN-SN67HS
Serial number
6C70031786
Bought from
Target
Bought
Aug 3, 2020, about then
Where
Harrisburg, United States: Home/Apartment/Condominium
Who was involved
Age 34, Female
The reporter’s relation to them
Self
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Injury, Seen by Medical Professional

CPSC report 20240425-78CBC-2147339565. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made May 4, 2022, sent to the company May 26, 2022, published by CPSC Jun 21, 2022

The product, in the report: Household microwave

Microwave caught fire. I wasn’t using it, but a plate was inside. It turned on on its own. I was outside and smelled smoke.

Model
NN-SN946W
UPC
NA
Serial number
6f59220491
Bought from
Walmart
Bought
May 1, 2019
Where
Kingsland, Georgia: Mobile/Manufactured Home
Who was involved
Unknown
The reporter’s relation to them
Unspecified
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(6/23/2022) Panasonic Corporation of North America: Initially, it should be noted that all Panasonic products meet or exceed all applicable safety standards including FDA microwave oven radiation standards and Underwriters Laboratories (UL) safety standards governing door interlock systems. In this case, the consumer failed and refused to provide the product to Panasonic, depriving the manufacturer of the opportunity to evaluate it. That is unsurprising considering her report of harm contains a recitation of facts which is simply not credible. In that vein, it should be noted that the consumer readily admits she was outside the home at the time of the incident and did not witness it first-hand. What is apparent from the photographs is there was no fire and the unit did not – and cannot – turn on by itself. The microwave simply cannot begin a cooking cycle on its own. Several preconditions must be met before the unit is operational. Three (3) internal devices comprising the interlock safety system must be set to their active position. Secondly, a cook time must be programmed. Finally, the start button must be pressed. Product activation without any human involvement is not possible. In addition, it is not true to say that the microwave oven caught fire. In reality, it is apparent from the presence of charring on the glass plate, yellowing of the cavity walls, and melting of the plastic film on the door’s interior, that the unit merely overheated due to product misuse. In fact, the components associated with the cook cavity (none of which are electronic), and the waveguide cover, are constructed of fire-retardant material. Such a design is in place for the very purpose of eliminating safety hazards in the event of overheating. This type of overheating can only occur where the user improperly operates the unit in contravention of its warnings and instructions, including by: operating the microwave without a food load, overcooking, mis-programing, severely mis-judging the appropriate cook power or serving size, or otherwise disregarding the warnings and instructions supplied by the manufacturer of the microwave (or the food/materials placed within it). It should also be noted that the consumer disregarded the unit’s operating instructions by leaving the product unattended while in use. In short, the report of harm does not evidence a safety hazard. We nonetheless thank the user for bringing this event to our attention and for the opportunity to comment.

CPSC report 20220504-25A7E-2147356356. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Feb 22, 2022, sent to the company Mar 17, 2022, published by CPSC Apr 7, 2022

The product, in the report: Panasonic microwave oven

My wife was using our Panasonic microwave oven yesterday evening to reheat lasagna and it wouldn’t turn off, even after the cooking time expired. We both tried pressing every button on the electronic control keypad without results. We even opened and closed the microwave door twice and it kept working, which I think is quite dangerous. The only way I could turn it off was to unplug it from the electrical outlet. We’ve reported this problem to Panasonic and they’ve escalated it to their tech support people. Our microwave’s Model Number is NN-SC668S and its Serial Number is 6H71309148. We purchased this unit from Costco on November 24, 2021. It’s still covered under Panasonic’s one year warranty.

Model
NN-SC668S
UPC
885170364462
Serial number
6H71309148
Bought from
Costco
Bought
Nov 24, 2021
Where
Washington, District of Columbia: Home/Apartment/Condominium
Who was involved
Age 63, Female
The reporter’s relation to them
My Spouse
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(4/1/2022) Panasonic Corporation of North America: The customer surmised, in part, that the microwave oven continued to operate, even though the cooking cycle ended.
Panasonic contacted the consumer in order to obtain the unit for our examination and testing. Our evaluation of the microwave oven revealed no evidence to support the reported event. The unit was found in normal working order. Testing of all components that could have substantiated the consumer’s claims revealed they are intact and could not have caused the phenomenon that the consumer reported, and which could not be reproduced during our testing/evaluation. It should also be noted that monitoring the input current revealed no current draw at the completion of each cooking cycle.
Thus, there is no basis for the consumer’s speculative claim that the product seems to be “quite dangerous.”
In fact, the product is certified compliant with FDA oven radiation standards as well as UL (Underwriters Laboratories) cooking appliance safety standards. Importantly, the product is designed specifically to detect and discontinue any post-cooking cycle operation of the microwave’s magnetron wherever there is a fault condition such as elevated temperature in the cavity. Since the energy-producing circuit is automatically deactivated in such a scenario, the consumer cannot possibly become exposed to microwave energy.
Even assuming the consumer’s description of the event is accurate (and we have no objective basis to believe it is), a plausible explanation would be a temporary circuitry irregularity which self-corrected. Regardless, as a result of the safety features this microwave oven is equipped with, the consumer was never subjected to any actual or potential harm.
We appreciate the opportunity to comment and are in contact with the consumer to provide him with further assistance.

CPSC report 20220222-979E6-2147357480. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Apr 28, 2021, sent to the company May 4, 2021, published by CPSC May 18, 2021

The product, in the report: Inverter Microwave

Panasonic Inverter microwave, model NN-SN966S, started to smoke while not in use. My husband and I were home and awake at the time, so caught it very early and were able to unplug it and stop the fire from starting. If we had been gone or asleep we do not believe we would have caught it in time to stop if from setting our kitchen on fire. No one was using it to cook when the fire started, and the unit had not been used at all that day.

Model
NN-SN966S
Serial number
6F40130114
Bought from
Fred’s Appliance, Washington
Bought
Apr 30, 2020, about then
Where
West Richland, Washington: Home/Apartment/Condominium
Who was involved
Age 40, Unknown
The reporter’s relation to them
Self
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(5/20/2021) Panasonic Corporation of North America: Panasonic is committed to engineering and manufacturing safe, quality consumer products. All of Panasonic’s products are designed to meet or exceed Underwriters Laboratories, Inc. (UL) safety standards, and all applicable government regulations. Panasonic’s Consumer Satisfaction team contacted the consumer to request that the product be made available for an evaluation. Although we provided a pre-paid shipping label, the consumer declined to ship the microwave to us, depriving Panasonic of the opportunity to evaluate and test it.
Under these circumstances we cannot comment conclusively on the event. We can say, however, that the consumer’s description seems very far-fetched; particularly the suggestion that smoke emanated from the unit despite that it was not in use at the time and had not been used at all that day. She also claims that unplugging the microwave prevented a fire. But that is pure speculation and, in fact, highly unlikely given the flame-retardant materials this product is constructed of.
We appreciate this information having been brought to our attention. We take matters such as this seriously, which is why we sought to make it as convenient as possible for the consumer to permit Panasonic an opportunity to evaluate the unit.

CPSC report 20210428-56727-2147364446. Submitter: Consumer Search for it on SaferProducts.gov
Hurt, no treatment
Made Apr 9, 2021, sent to the company Apr 13, 2021, published by CPSC May 4, 2021

The product, in the report: Panasonic Microwave model NN-SA651S

Called by a resident who stated he was moving a microwave and received a visible shock that ran up his arms and across his chest. The shock was strong enough that it took the resident to his knees. Product is a Panasonic Microwave model NN-SA651S.

Model
NN-SA651S
UPC
Unknown
Serial number
6D86111393
Where
Berrien Springs, Michigan: Home/Apartment/Condominium
Who was involved
Age 58, Unspecified
The reporter’s relation to them
Unspecified
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Injury, No First Aid or Medical Attention Received

The company’s comments, in its own words

(5/7/2021) Panasonic Corporation of North America: It is unfortunate that CPSC chose to publish this report despite that there is no first-hand evidence it actually occurred. Panasonic contacted the submitter of this information and he advised that he did not witness the incident and had absolutely no personal knowledge of it. The submitter is not even the owner of the subject product. Making matters worse, he declined to provide Panasonic with the name of the individual who allegedly experienced this incident, depriving us of any meaningful opportunity to discuss it with the microwave’s owner. In short, this report consists entirely of hearsay and is extremely unreliable. We did, however, obtain the product for evaluation and testing. Our examination of the unit, including the power supply cord, revealed that it is intact and in normal working order. Internal examination of the microwave oven revealed no evidence of component damage or any other abnormalities that could present a potential shock hazard or any other hazards. While testing the microwave oven, no electric shocks were experienced. Further testing revealed the outer enclosure is properly grounded to the plug’s ground pin. A leakage current test was conducted in accordance with the applicable UL standard for Microwave Cooking Appliances, UL 923, and the measured leakage current was well within specifications. All testing revealed it is not possible for the consumer to become exposed to a shock hazard due to the construction or a malfunction of the microwave oven. Therefore, it is possible the consumer experienced a static discharge, or perhaps the consumer’s outlet powering the microwave oven may be incorrectly wired. For these reasons, Panasonic contacted the consumer again and recommended that the outlet be inspected by a qualified/licensed electrician. Panasonic is committed to engineering and manufacturing safe, quality consumer products. All of Panasonic products are designed to meet or exceed Underwriters Laboratories, Inc. (UL) safety standards, and all applicable government regulations.

CPSC report 20210409-AE898-2147364885. Submitter: Public Safety Entity Search for it on SaferProducts.gov
No one hurt
Made Mar 26, 2021, sent to the company Apr 5, 2021, published by CPSC Apr 19, 2021

The product, in the report: Panasonic Microwave Oven: NN-SN686S, Black and stainless Steel Countertop with Inverter Technology and Genius Sensor; 1.2 cubic foot; 20” x 12”x 13” Model NN-SN686S

My 2 month old Panasonic Microwave with the “Genius Sensor 1200W” just caught on fire!!! I was heating something and smelled something burning. When I opened the door I could see black charred material on the glass turntable and the metal grate (?) on the side of the microwave oven was melted and black where it obviously overheated and caught fire. I was very very lucky that I was in the kitchen when it happened. There are multiple reports of this happening reported on Amazon.

Model
NN-SN686S
UPC
Not on product
Serial number
6H80101151
Bought from
Amazon
Bought
Jan 25, 2021
Where
Scottsdale, Arizona: Home/Apartment/Condominium
Who was involved
Age 77, Female
The reporter’s relation to them
Self
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(4/12/2021) Panasonic Corporation of North America: Panasonic is committed to engineering and manufacturing safe, quality consumer products. All of Panasonic’s products are designed to meet or exceed Underwriters Laboratories, Inc. (UL) safety standards, and all applicable government regulations. First, it should be noted that Panasonic reached out to the consumer to request that an evaluation of the subject product be performed. Unfortunately, the consumer had already disposed of the microwave oven, depriving Panasonic of the opportunity to inspect it. Nevertheless, based on the images provided and the consumer’s description of the event, the incident was likely caused by misuse of the microwave oven in a manner contrary to warnings and instructions provided by the manufacturer rather than any abnormality associated with the Panasonic product. Based on the consumer’s description of the event, there were remnants of charred food particles on the turntable. This is indicative of overcooking caused by the user having selected an improperly powerful cook setting and/or programing an unnecessarily lengthy cook time. Once the food is consumed, there is no moisture to absorb microwave energy. Energy can then reflect back to the waveguide cover area which can overheat any food particles or residue on the cover, causing charring and, potentially, arcing. Importantly, even if overheating occurs, the cavity and waveguide components are constructed of non-flammable materials in accordance with the applicable UL 923 safety standard. Studies and testing confirm that improper microwave cooking practices and inadequate cavity maintenance are often the causes of overheating issues. Panasonic continues to study and implement, where appropriate, design changes to counteract overheating issues that can arise from the concentration of energy caused by food particles left in the microwave oven’s cavity. But, as with any cooking appliance, a minimum level of care and adherence to warnings and instructions is necessary to minimize the likelihood of an overheating event such as this one.

CPSC report 20210326-359AC-2147365146. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Oct 29, 2020, sent to the company Nov 6, 2020, published by CPSC Dec 2, 2020

The product, in the report: Panasonic microwave oven Model No: NN-SB646S. Csid: ATH Mfg July 2018. FCC ID VG8EM134AYYMW Serial NO. 6G 78250440. Sticker on back has this serial number: EB06128420518719110456.

Son reported microwave ran with door open week ago. I couldn’t reproduce problem. But after heating a small cup of water for 25 seconds today, and the timer stopped and the display cleared indicating off, I could hear a vibration continue. The magnetron was still on even though the display indicated off! I unplugged the microwave and the plug gave a large spark indicating heavy current use, even though the display indicated off. The water was much hotter than 25 seconds of use would indicate. Very dangerous condition, with magnetron staying on in off state. If I had opened door, it may have given me heavy exposure. If I had walked away with the microwave still stuck in the on state, the water would have boiled away and the machine run dry, possibly causing a fire.

Model
NN-SB646S
Serial number
EB06128420518719110456.
Bought from
Wal Mart
Bought
Dec 15, 2018, about then
Where
Wake Forest, North Carolina: Home/Apartment/Condominium
Who was involved
Age 57, Male
The reporter’s relation to them
Self
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(12/2/2020) Panasonic Corporation of North America: Panasonic is committed to engineering and manufacturing safe, quality consumer products. All of Panasonic’s products are designed to meet or exceed Underwriters Laboratories, Inc. (UL) safety standards, and all applicable government regulations.
The customer surmised, in part, that the microwave oven continued to operate, even though the cooking cycle ended.
Panasonic contacted the consumer in order to obtain the unit for our examination and testing. Our evaluation of the microwave oven revealed no evidence to support that the reported event could have occurred as described by the consumer. The unit is in normal working order. Testing of all components that could have substantiated the consumer’s claims revealed they are intact and could not have caused the phenomena that the consumer speculates could occur, i.e., fire or “heavy exposure” to microwave energy. It should also be noted that monitoring the input current revealed no current draw at the completion of each cooking cycle. Thus, there is no basis for the consumer’s unfounded concerns regarding fire or exposure to energy emitted by the product.
A) Although we were unable to reproduce the alleged occurrence, we posit that the following may be a plausible explanation for what the consumer observed: with the door closed, in theory it is possible that one of the components in the door’s interlock system can temporarily malfunction, causing the fan motor, carousel motor, light, or magnetron to turn on at the completion of the cooking cycle.
B) With the door closed, even if the magnetron were to continue to operate after the cooking cycle ended, this would not pose a safety hazard. The microwave oven is designed to detect such condition and discontinue operation upon detection of high cavity temperature.
C) Particularly while the door is opened, the magnetron (the device producing microwave energy for cooking) does not operate since the circuit generating cooking energy is turned off under such a condition.
D) It should be noted that the fan is designed to continue operating for 15 seconds at the conclusion of any cooking cycle of five minute or greater. This is perfectly normal, to allow cooling of internal components. It is possible the consumer may have misinterpreted this feature as a malfunction when, in reality, it is a design feature intended to keep electronic components cool and ensure product longevity.
E) The door safety interlock system complies with all safety requirements, including Underwriters Laboratories, Inc. (UL) and FDA (HHS) applicable safety standards.
We are in contact with the consumer to provide further assistance in this matter.

CPSC report 20201029-34CD0-2147368983. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made May 19, 2020, sent to the company May 27, 2020, published by CPSC Jun 19, 2020

The product, in the report: Silver Panasonic Microwave oven NN-SN67KS

I used our Panasonic Microwave 2 times (over the course of a week) and the inside plastic surrounding the door glass melted onto the microwave itself. It smelled as though it was burning. It is brand new-- we only received it last week.
It is a model NN-SN67KS from Panasonic, SN 6bd9120685.

Model
NN-SN67KS
UPC
aclapbt31
Serial number
6bd9120685
Bought from
Amazon.com, Washington
Bought
May 9, 2020, about then
Where
Alexandria, Virginia: Home/Apartment/Condominium
Who was involved
Unknown
The reporter’s relation to them
Self
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(6/10/2020) Panasonic Corporation of North America: Panasonic is committed to engineering and manufacturing safe, quality consumer products. All of Panasonic’s products are designed to meet or exceed Underwriters Laboratories, Inc. (UL) safety standards, and all applicable government regulations. In this case, the consumer was asked to provide the product to Panasonic so that an evaluation could be performed. Unfortunately, despite that we made arrangements for pre-paid shipping, the consumer has not supplied us with the microwave oven and she has ignored our various follow-up attempts to contact her. Without the consumer’s cooperation, it is impossible to even verify that this is in fact a genuine Panasonic product, and we have been deprived of any opportunity to assess the validity of the consumer’s report or her speculation that there may be a risk of fire. Based, however, on the limited information available to us, it appears the consumer is referring to damage she observed to the plastic film adhered to the microwave oven’s interior door. That typically indicates extreme over-cooking by the consumer far in excess of what is necessary for proper food preparation. Accordingly, there is no basis to believe the consumer has described a safety hazard associated with the product. If and when we are permitted to evaluate the unit, we may supplement our findings. We appreciate the opportunity to review and comment.

CPSC report 20200519-52F28-2147372256. Submitter: Consumer Search for it on SaferProducts.gov
Hurt, no treatment
Made Jan 3, 2019, sent to the company Feb 6, 2019, published by CPSC Feb 22, 2019

The product, in the report: Panasonic Silver Inverter Microwave

On Christmas my wife was cooking in the kitchen when all of a sudden I heard a panic yell. I ran in and our microwave was having a spark fire that was turning into a fire on the inside. I opened the door to put it out where one of the sparks hit and burnt my finger. I took it outside away from our house. To prove it to Panasonic I turned it on again and took video and pictures of it happening and cleared again at my own risk. The microwave was heating butter in a clay bowl. There had never been any aluminum or metal products in the microwave and it literally was on FIRE! I contacted Panasonic and a couple emails later this was their (Panasonics) final response Mr. [REDACTED],
Based on the pictures you sent us, the unit is not economical to repair. Please discontinue use and dispose of the unit.
If you buy a new Panasonic Microwave I will reimburse you 20% of the purchased price, not including shipping.
This offer is valid until February 4th, 2019. If you decide to accept the offer, send me the Bill of Sale for the new unit, the serial number, and new model number.
Once received the reimbursement will be processed. A check will be mailed to you. Please allow 5 business days to receive after processed.
Regards,
[REDACTED]
First, where is the explanation of what actually happened!? Second, they want me to buy another one of their products without any sort of safety response to this microwave catching pn firem Third, this microwave is $170 and I got it as a Christmas present 2-3 years ago. I have had a microwave for 10 plus years that was like 50 bucks that never did this. After further investigation I found out this has happened to other people and kind of the same response from Panasonic. So with a $170 microwave catching on fire, my finger burnt their response is buy our product again and we will take off 20-30 dolllars. May I add NOT INCLUDING SHIPPING as they state Their product is a safety issue I wanted reassurance it was a fluke or something like that and a replacement. Yet, i got that.

Model
NN-SA661S
Serial number
6H93081240
Bought from
Costco, California
Where
Norwalk, California: Home/Apartment/Condominium
Who was involved
Age 27, Male
The reporter’s relation to them
Self
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Injury, No First Aid or Medical Attention Received

The company’s comments, in its own words

(2/20/2019) Panasonic Corporation of North America: Panasonic is committed to engineering and manufacturing safe, quality consumer products. All of Panasonic’s products are designed to meet or exceed Underwriters Laboratories, Inc. (UL) safety standards, and all applicable government regulations.
The consumer did contact Panasonic and was advised to provide the unit for an evaluation. To date, the consumer has failed and refused to provide us with the unit despite our pre-paying for shipment. Without an opportunity to evaluate the unit Panasonic cannot conclusively comment on the event.
However, based on our evaluation of an image provided by the consumer, which depicts skin discoloration, we can state with confidence that it is unlikely the injury resulted from arcing from the microwave oven. Any electrical activity is immediately interrupted once the door is opened. If there was arcing within the cook cavity, such activity would have stopped immediately upon opening the door, preventing any arcing. Furthermore, the discoloration on the mid-portion of the customer’s finger (what looks to be the middle finger’s middle phalange) is not likely that from an arc, especially since there is no evidence of missing material at the waveguide cover. For matter to arc, there would have to be material missing from the source (waveguide cover).
A second image depicting the right side of the cook cavity reveals evidence of overheating not consistent with a fire event. This is supported by the fact that components within the cook cavity are made of fire-retardant materials, as required by this product’s applicable safety standard required by Underwriters Laboratories, Inc. (UL). Thus, contrary to the consumer’s report, there was no fire event to speak of, and it is highly questionable, based on the discrepancy between the photographic evidence and the consumer’s description of the event, whether the incident actually occurred in the manner claimed.
Finally, it should be noted that our records indicate the product depicted on the packaging shown to us was manufactured in September 2013; more than five (5) years prior to the reported incident date and a number of years before the consumer reportedly received it as a present from an unknown source. Because we have not been provided the unit, we are not able to confirm at this time that it is in fact a Panasonic brand microwave oven. Nor are we able to rule out any tampering or other product alteration which may have occurred in the years between its manufacture and the time this consumer finally received it.
Similarly, we are unaware how the product may have been stored or used/misused by others in the years post-manufacture and prior to the event. Since the consumer declined to provide a bill of sale and the product came to him through indeterminate channels, any number of post-manufacture alterations, repairs, or misuse may have preceded this event and potentially contributed to it.

CPSC report 20190103-CBA09-2147383430. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Aug 10, 2018, sent to the company Sep 20, 2018, published by CPSC Oct 4, 2018

The product, in the report: Panasonic microwave oven. Silver color body with silver and black trim. 1.6 cubic feet, ‘Inverter’ technology. Model no: NN-SN762S. Csid: ABH. Serial no: 6AD3210093. Type: S333. Manufactured: December 2013. FCC ID: ACLAP7B51. Other number listed: F05247A00AB. Front panel says: “the Genius Sensor 1250W”. Information plate says: “FOR USE ON 60 Hz, 120 VAC ONLY, INPUT 12.7 AMPS”; “DISTRIBUTED BY PANASONIC CONSUMER ELECTRONIC COMPANY SECAUCUS, N.J. 07094”; “MADE IN CHINA. SHANGHAI, CHINA/CHINE 201203”; “MANUFACTURED BY: PANASONIC APPLIANCES MICROWAVE OVEN (SHANGHAI) CO., LTD.”.

Re: Panasonic microwave oven - emitting smoke; outsides hot enough to burn skin; burned rubber and metal smell
While boiling a cup of water two days ago, a smell of burning rubber and metal began to emanate from the microwave oven. A harsh smoke also began to come from the microwave, and there was an unusual electric sound.
Even after stopping the cooking cycle, the outsides of the oven were hot enough to burn skin. We were fortunate to have just enough room behind the oven to unplug it from the outlet.
The smoke and smell still continued for a period of time, and it was several minutes before we felt the sides of the oven were cool enough to remove it outside, even using heat protective gear (heavy duty cooking mitts).
We contacted Panasonic support through their website chat the next day. After detailing what happened, their representative told us to take the microwave to their standard “authorized Panasonic Service Center.”
When we explained that Panasonic’s responses to reports on SaferProducts.gov usually claim that the Panasonic product safety team wants “to obtain the unit for examination and testing”, the representative escalated us to tier 2 support.
A tier 2 representative called us later that day to gather additional information. Then a member of Panasonic’s consumer product safety team, [Redacted], called us the next day.
[REDACTED] told us that this was not a safety issue, but was instead only a service issue.
We again explained that the smoke of what was apparently burned electronics or rubber seemed like a health and safety concern, as did the extremely hot outsides, which could have burned through the skin of someone hurrying to move a smoking microwave oven to an open window or outside the home.
Yet [REDACTED] again insisted that this was “just a service issue”, not a safety issue. He would not make arrangements for the product to be evaluated by the company’s safety personnel.
We brought to his attention that many statements by Panasonic Corporation of North America to the Consumer Product Safety Commission, in response to incident reports, claim that Panasonic’s policy is to obtain the unit for examination and testing, or evaluation. (See Appendix 1 below.)
This situation is disturbing, as it indicates that many of Panasonic’s responses to the Consumer Product Safety Commission may not accurately reflect their real-world practice.
It may not actually be “company policy [for] Panasonic [to] contact[] the consumer to request the unit be returned for an evaluation” -- or at least company policy as implemented or enforced in real life, unless the consumer escalates to the CPSC.
This is even more troubling because Panasonic usually relies on this response (that they are waiting to receive the microwave oven or were unable to obtain it from the consumer) to avoid providing comment on why the product failed and what steps they will take to protect other consumers.
The CPSC should take action to ensure that Panasonic’s statements to the CPSC reflect the actual company practice that consumers will face when they report such an issue directly to the company.
- APPENDIX 1: Sampling of statements by Panasonic Corporation to CPSC suggesting it is company policy or practice to request that consumer return reported microwave oven units to Panasonic for safety evaluation -
https://saferproducts.gov/ViewIncident/[REDACTED]
“Panasonic quickly contacted the consumer in order to obtain the Microwave Oven for examination and testing upon learning of her report of harm. Although it has now been more than ten (10) days since we supplied the consumer with prepaid shipping arrangements, we have yet to receive the MWO from the consumer.”
https://saferproducts.gov/ViewIncident/[REDACTED]
“Panasonic has contacted the consumer to obtain the unit for examination and testing. Without an opportunity to evaluate the unit, Panasonic cannot conclusively comment on the event.”
https://saferproducts.gov/ViewIncident/[REDACTED]
“Panasonic has contacted the consumer to obtain the unit for examination and testing.”
https://saferproducts.gov/ViewIncident/[REDACTED]
“As per company policy, Panasonic contacted the consumer requesting the unit to be returned for an evaluation.”
https://saferproducts.gov/ViewIncident/[REDACTED]
“Regardless, as is company policy, Panasonic contacted the consumer to request the unit be returned for an evaluation. Without having an opportunity to test the unit Panasonic cannot conclusively comment on the event.”
https://saferproducts.gov/ViewIncident/[REDACTED]
“Panasonic has contacted the consumer in order to obtain the unit for examination and testing. Until Panasonic has the opportunity to investigate further, there is no reason to believe the occurrence is a safety hazard.”
https://saferproducts.gov/ViewIncident/[REDACTED]
“Panasonic has contacted the consumer in order to obtain the unit for testing. Without having an opportunity to evaluate the unit Panasonic cannot conclusively comment on the event.”
https://saferproducts.gov/ViewIncident/[REDACTED]
“The consumer did not provide contact information for Panasonic to obtain the unit for inspection. Without having an opportunity to evaluate the unit Panasonic cannot conclusively comment on the event at this time.”
https://saferproducts.gov/ViewIncident/[REDACTED]
“Panasonic has contacted the consumer in order to obtain the units for examination and testing. Without having an opportunity to evaluate the units, Panasonic cannot comment further on the events reported at this time.”
https://saferproducts.gov/ViewIncident/[REDACTED]
“The consumer did not provide contact information for Panasonic to obtain the unit for testing. Without having an opportunity to evaluate the unit Panasonic cannot conclusively comment on the event.”
https://saferproducts.gov/ViewIncident/[REDACTED]
“When Panasonic learned of the consumer’s action it contacted the Retailer to attempt to obtain the unit. The Retailer advised that it had already discarded the unit and it could not be recovered.
Panasonic is conscientious about following up all Reports of Harm by consumers to evaluate possible safety or quality issues. Without the unit, it is not possible to conduct an analysis to determine what the possible cause may have been.”

Model
NN-SN762S
Serial number
6AD3210093
Bought from
Costco Wholesale Corporation, California
Bought
Feb 17, 2014, about then
Where
Porter Ranch, California: Home/Apartment/Condominium
Who was involved
Age 39, Male
The reporter’s relation to them
My Child
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(1/29/2019) Panasonic Corporation of North America: Panasonic is committed to engineering and manufacturing safe, quality consumer products. All of Panasonic’s products are designed to meet or exceed all applicable safety standards and government regulations.
In this case the consumer reported that while boiling a cup of water, a smell of burning rubber and metal emanated from the microwave oven; harsh smoke and an unusual electric sound was also noticed. The consumer claims that the outside of the microwave oven was hot enough to burn skin.
This report of harm contains a number of false statements. First, the consumer suggests Panasonic violated its own policy by directing him to an authorized service center rather than obtaining the microwave oven for examination and testing, or evaluation. As “proof” of the violation, the consumer links to Panasonic statements relating to other, unrelated CPSC reports through the years. None of those statements establishes that it is in fact Panasonic’s policy to always obtain the unit at the outset for testing and evaluation. In actuality, Panasonic reserves the right, and often does, first send products to authorized service centers. Authorized servicers are trained personnel who are instructed to report consumer complaints that present potential quality or safety issues. If a legitimate safety issue is identified, it is communicated to the manufacturer as appropriate. Here, [REDACTED] simply refused to send his product to the authorized service center. Once this consumer reported the incident to CPSC, then Panasonic did obtain the unit for examination and testing, as was done in the instances that he provides links to. Contrary to what is stated in the report of harm, in no way did Panasonic violate any of its own policies or procedures. The consumer simply chose to escalate this event to CPSC rather than take advantage of the more than adequate services at his disposal.
Secondly, our evaluation and test results demonstrate that the consumer’s report does not evidence a safety hazard and the exterior of the unit could not have reached temperatures hot enough to burn skin as the consumer claims. We evaluated [REDACTED]’s microwave oven and confirmed that the unit will shut off when reproducing [REDACTED]’s event. There was no evidence of smoke, a burning rubber smell, or overheating. That is unsurprising because, as is the case with any Panasonic microwave oven, this model incorporates safety detection circuitry designed to cease operation before a potential safety hazard – such as elevated exterior temperature which might pose a burn hazard – can arise due to any internal failure.
It should also be noted that although our evaluation revealed a component failure of unknown origin, that component is constructed of fire-retardant material designed to prevent creation of excessive heat capable of conduction to accessible surfaces. Furthermore, the unit is otherwise completely intact internally. In short, the incident simply could not have presented the safety risks that the consumer speaks of.
We appreciate the incident having been brought to our attention and the opportunity to comment.

CPSC report 20180810-99877-2147386252. Submitter: Consumer Search for it on SaferProducts.gov
First aid
Made Jul 10, 2018, sent to the company Jul 18, 2018, published by CPSC Aug 1, 2018

The product, in the report: Microwave oven 2.2 cu ft counter top

Product is Panasonic Microwave oven. Model NN-SN936W. This is a 2.2 cu ft counter-top oven. I am paralyzed on the right side. I have to use my left hand/arm to open this from a seated position in my wheelchair. I have now twice (2) had the door cut my forearm as it opens and hits my arm. I have taken a photo but don’t know how to submit it.

Model
NN-SN936WAPH
Serial number
6F97190010
Bought from
amazon.com
Bought
Nov 24, 2017
Where
Black Forest, Colorado: Home/Apartment/Condominium
Who was involved
Age 59, Female
The reporter’s relation to them
Self
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Injury, First Aid Received by Non-Medical Professional

The company’s comments, in its own words

(8/1/2018) Panasonic Corporation of North America: Panasonic is committed to engineering and manufacturing safe, quality consumer products. All of Panasonic’s products are designed to meet or exceed Underwriters Laboratories, Inc. (UL) safety standards, and all applicable government regulations.
Panasonic Microwave ovens (“MWO”) are evaluated and comply with sharp edge testing in accordance with Underwriters laboratories UL1439, the standard for sharpness of edges. Panasonic microwaves also are certified compliant to UL 923 microwave cooking appliances, which also calls for similar testing for sharp edges. In addition, our MWOs comply with accessibility laws and regulations.
The consumer in this case reports that she suffers from paralysis on the right side and therefore must use her left hand/arm to open the MWO from a seated position in a wheelchair. She reports that she has twice had the door of the MWO cut her forearm as it opens and hits her arm. The consumer did not specify where the MWO is situated in her home and she did not describe the manner in which she reached for and opened the MWO on either occasion.
We appreciate this information being brought to Panasonic’s attention. Panasonic quickly contacted the consumer in order to obtain the Microwave Oven for examination and testing upon learning of her report of harm. Although it has now been more than ten (10) days since we supplied the consumer with prepaid shipping arrangements, we have yet to receive the MWO from the consumer. At this time, given that the unit complies with applicable standards and testing, we have no reason to believe that the oven door had impermissibly sharp edges at the time it left the manufacturer’s control. We appreciate the cooperation of the consumer in bringing this information to our attention and in allowing us the opportunity to comment.

CPSC report 20180710-F5CBE-2147386884. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made May 11, 2017, sent to the company Jul 13, 2017, published by CPSC Jul 27, 2017

The product, in the report: Microwave oven, Panasonic NN-SN686S

I found a post online about how to cook a hard boiled egg in the microwave. I heated one cup of water in a 2-cup [REDACTED] container. I poked a hole in the raw egg with a thumb tack and put it in the hot water. I then covered the container with a paper plate and turned the microwave to 50% power for 4 minutes. After a minute or so, I looked in and the water was boiling and everything seemed fine. About 5 seconds later, there was an explosion, the microwave door flew open and the glass tray (the one that rotates inside the microwave) and the boiling water/egg in the container flew out of the microwave and hit the cabinet about 3 feet away from the microwave. They all crashed to the floor and broke into a million pieces, scattering glass everywhere. I feel like this should never happen with a microwave. If I had looked in a few seconds later, the door/tray/boiling water would have hit me.

Model
NN-SN686S
UPC
885170282919
Serial number
unknown
Bought from
Amazon
Bought
Mar 26, 2017
Where
Brookeville, Maryland: Home/Apartment/Condominium
Who was involved
Age 54, Female
The reporter’s relation to them
Self
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(7/20/2017) Panasonic Corporation of North America: Panasonic is committed to engineering and manufacturing safe, quality consumer products. All of Panasonic’s products are designed to meet or exceed Underwriters Laboratories, Inc. (UL) safety standards, and all applicable government regulations.
In this case the consumer reported that she found a post online about how to cook a hard-boiled egg in the microwave. She reported she heated one cup of water in a 2-cup container, she poked a hole in the raw egg with a thumb tack and put it in hot water. She further reported she covered the container with a paper plate and turned the microwave to 50% power for 4 minutes. She reported that after a minute or so, she looked in and the water was boiling and everything seemed fine. About 5 seconds later, there was an explosion, the microwave door flew open and the glass tray and the boiling water/egg in the container flew out of the microwave and hit the cabinet about 3 feet away from the microwave.
We appreciate this information being brought to Panasonic’s attention. Panasonic has contacted the consumer to obtain the unit for examination and testing. Without an opportunity to evaluate the unit, Panasonic cannot conclusively comment on the event.
However, it should be noted that the consumer used a cooking method expressly prohibited by this product’s Owner’s Manual. Several sections of the Operating Instructions advise the consumer to not cook whole eggs. The cover page advises consumers to read all instructions carefully before using the oven. The “Important Safety Instructions” section of the Owner’s Manual, which is developed in accordance with applicable industry safety standards, clearly states that “some products such as whole eggs, with or without shell . . . may explode and should not be heated in this oven”.

CPSC report 20170511-03071-2147401581. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Mar 2, 2017, sent to the company Mar 10, 2017, published by CPSC Mar 24, 2017

The product, in the report: Panasonic microwave

I own a Panasonic NN-SN686S in Stainless Steel with a dial and have had it for several years. Yesterday I used the microwave on standard settings with a glass, microwave safe Pyrex bowl inside with butter in it.
The microwave caught on fire internally after 30s of active cook time. The interior panel on the right side of the microwave was bubbled and burnt black when I opened the microwave after unplugging it and waiting for the flames to subside.
The microwave is out of 1-year warranty so the company will not replace it.

Model
NN-SN686S
Bought
Oct 1, 2015, about then
Where
San Francisco, California: Home/Apartment/Condominium
Who was involved
Age 24, Female
The reporter’s relation to them
Self
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(5/2/2017) Panasonic Corporation of North America: Panasonic is committed to engineering and manufacturing safe, quality consumer products. All of Panasonic products are designed to meet or exceed Underwriters Laboratories, Inc. (UL) safety standards, and all applicable government regulations.
The consumer reported he was using his microwave oven model NN-SN686S to heat a food serving in a Pyrex bowl when the right-side panel of the cook cavity burned.
We appreciate this information being brought to Panasonic’s attention. Panasonic has contacted the consumer to obtain the unit for examination and testing. Until Panasonic had the opportunity to investigate further, there is no reason to believe the occurrence is a safety hazard.

CPSC report 20170302-D9A7D-2147405537. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Jan 10, 2017, sent to the company Feb 9, 2017, published by CPSC Mar 6, 2017

The product, in the report: Microwave Oven

While softening butter in the microwave the interior wall caught on fire. 6 to 8 flames shot out of wall of the oven. I had to unplug the oven in order to stop the microwave and put out the fire.

Model
NN-SN661S
Serial number
6BD1170432
Bought
Mar 14, 2012, about then
Where
Moorestown, New Jersey: Home/Apartment/Condominium
Who was involved
Unspecified
The reporter’s relation to them
Unspecified
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(3/1/2017) Panasonic Corporation of North America: Panasonic is committed to engineering and manufacturing safe, quality consumer products. All of Panasonic’s products are designed to meet or exceed Underwriters Laboratories, Inc. (UL) safety standards, and all applicable government regulations. In this case the consumer claimed that the interior wall of their microwave oven caught on fire and flames shot out of the wall. The consumer further added that the flames stopped after unplugging the microwave oven.
As per company policy, Panasonic contacted the consumer requesting the unit to be returned for an evaluation. The consumer declined the request, but provided images of the unit and later contacted the Commission. Without having an opportunity to evaluate the unit Panasonic cannot conclusively comment on the event. However, based on the images the claim is attributed to overheating at the waveguide area, resulting from concentration of energy. Microwave energy may have concentrated at the affected area, in part, due to food splatter or improper cooking time setting. As with any cooking appliance, microwave ovens require the same level of care to prevent overheating. Extensive studies and testing revealed that improper microwave cooking practices and inadequate cavity maintenance are often the causes of overheating issues. Food particles in the cavity and excess cooking time can cause concentration of energy. There have been ongoing and continuous design improvements to minimize overheating issues. Even if overheating occurs within the cavity walls, the components associated in the cavity and at the waveguide are constructed of non-flammable materials and therefore do not create a safety hazard.
While there may be evidence of overheating, there is no evidence of a safety hazard.

CPSC report 20170110-0FCA4-2147408266. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Jan 2, 2017, sent to the company Jan 18, 2017, published by CPSC Feb 2, 2017

The product, in the report: Microwave oven - manufacture date is august 2004 - purchased approx October of that year. - old I know but a fire hazard.

panasonic microwave inverter. Microwave had grey smoke coming out of sides and bottom. Electrical smell and flames while it was running. If I had not been present and turned it off there would have surely been a kitchen fire.

Model
NNT774SF
Serial number
6A84151106
Bought from
costco.com, Washington
Where
West Vancouver, Canada: Home/Apartment/Condominium
Who was involved
Age 62, Male
The reporter’s relation to them
Self
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(1/27/2017) Panasonic Corporation of North America: Panasonic is committed to engineering and manufacturing safe, quality consumer products. All of Panasonic’s products are designed to meet or exceed Underwriters Laboratories, Inc. (UL) safety standards, and all applicable government regulations. In this case the consumer claimed that gray smoke emanated from the sides and bottom of their microwave oven. The consumer further reported they noticed electrical smell and flames, while the unit was running. Panasonic would like to point out that this matter was reported by a consumer in Canada. Regardless, as is company policy, Panasonic contacted the consumer to request the unit be returned for an evaluation. Without having an opportunity to test the unit Panasonic cannot conclusively comment on the event.

CPSC report 20170102-8B5AD-2147408592. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Mar 7, 2016, sent to the company Mar 15, 2016, published by CPSC Apr 5, 2016

The product, in the report: The microwave oven is approximately 20 inches in length, approximately 12 inches height, and approximately 14 1/2 inches depth; all outside measurements. Microwave is stainless steel and black exterior; white interior, glass turntable on a roller ring.

On approximately March 3, 2016, I put something in the microwave and it immediately made a strange noise. We turned around to looked and there were flames in the microwave in one area. We immediately cut power to the microwave and it stopped. It melted the exposed small light bulb on the right side of the microwave and blackened an area of the microwave near it also.
This microwave never seemed to perform correctly from the time we bought it. Sometimes it would run on a very slow speed as the glass turntable turned and did not sound like it should as it was running.
One complaint site: http://www.consumeraffairs.com/home_electronics/panasonic_microwave.html
Sounds like many types/styles of Panasonic microwave ovens models/styles have had fires and various other problems. I just want my money back and these recalled before someone is seriously hurt!

Model
NN-SA661S
UPC
088517004508
Serial number
6B75270128
Bought from
Walmart store, California
Bought
Oct 6, 2015
Where
McCloud, California: Home/Apartment/Condominium
Who was involved
Age 67, Female
The reporter’s relation to them
Unspecified
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(4/6/2016) Panasonic Corporation of North America: Panasonic is committed to engineering and manufacturing safe, quality consumer products. All of Panasonic products are designed to meet or exceed Underwriters Laboratories, Inc. (UL) safety standards, and all applicable government regulations.
In this case the consumer reported she was using her microwave oven model NN-SA661S and noted a strange noise and flames in one area. The consumer further stated that the area by the light bulb was melted and blackened.
We appreciate this information being brought to Panasonic’s attention. Panasonic has contacted the consumer in order to obtain the unit for examination and testing. Until Panasonic has the opportunity to investigate further, there is no reason to believe the occurrence is a safety hazard. Panasonic has reason to believe the consumer’s report includes materially inaccurate information that may not be factual.

CPSC report 20160307-5FC6B-2147421124. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Aug 3, 2015, sent to the company Aug 11, 2015, published by CPSC Aug 25, 2015

The product, in the report: Panasonic microwave oven, 2.2cft, 1250 watt, with inverter

I purchased a brand new Panasonic 2.2cft 1250 watt microwave in may for Mothers Day and after 3 months of service it is arcing while operating between the door and the body of the microwave. It also smells of burning electrical. It has not been used very much as we only use it to reheat a meal from time to time. The inside edge of the door was hot and had burn marks through the paint of the body where it was arcing to the door. Inside the microwave when it was operating looked like a welding arc. This is a definite fire hazard and could have been a disaster if I had not been standing there watching the food cook. This microwave has never been operated for more than a few minutes at a time to reheat food or heat water.

Model
NN-T945SFX
Serial number
6A35092416
Bought from
WALMART, North Dakota
Bought
May 2, 2015, about then
Where
Leeds, North Dakota: Home/Apartment/Condominium
Who was involved
Age 43, Male
The reporter’s relation to them
Self
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(8/13/2015) Panasonic Corporation of North America: Panasonic is committed to engineering and manufacturing safe, quality consumer products. All of Panasonic’s products are designed to meet or exceed Underwriters Laboratories, Inc. (UL) safety standards, and all applicable government regulations.
The consumer in this case advised that he had been using a Panasonic microwave oven model NN-T9455FX for three months when there was arcing between the door and the body of the oven. The consumer also states that there were burn marks in the paint and there was a smell of burning electrical.
Panasonic has contacted the consumer in order to obtain the unit for testing. Without having an opportunity to evaluate the unit Panasonic cannot conclusively comment on the event.

CPSC report 20150802-DA53F-2147429721. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Feb 23, 2015, sent to the company Mar 3, 2015, published by CPSC Mar 18, 2015

The product, in the report: Microwave oven

I was using my Panasonic Microwave (NN-SN651B) It started sparking and flaming. I reported it to Panasonic, and they said it was unsafe to use.

Model
Genius sensor NN-SN651B
Serial number
6D84160457
Bought from
amazon
Bought
Oct 2, 2014
Where
Studio City, California: Home/Apartment/Condominium
Who was involved
Age 51, Male
The reporter’s relation to them
Self
As this report names them
Brand Panasonic Genius Sensor 1200, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(3/6/2015) Panasonic Corporation of North America: Panasonic is committed to engineering and manufacturing safe, quality consumer products. All of Panasonic’s products are designed to meet or exceed Underwriters Laboratories, Inc. (UL) safety standards, and all applicable government regulations.
The consumer in this case advised that when using his Panasonic microwave oven, model NN-SN651B, he noticed sparks and flames. The consumer stated that he contacted Panasonic and they said it was unsafe to use it. The consumer did not provide contact information for Panasonic to obtain the unit for inspection. Without having an opportunity to evaluate the unit Panasonic cannot conclusively comment on the event at this time. However, judging by the nature of claim, it is possible that microwave energy concentrated on food particles as a result of not properly cleaning the cooking cavity or as a result of overheating food. In either case, the nature of this claim is not safety related.

CPSC report 20150223-DCA86-2147435124. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Jan 9, 2015, sent to the company Jan 30, 2015, published by CPSC Feb 27, 2015

The product, in the report: Panasonic Microwave Oven NN-SD967S.

I own two Panasonic NN-SD967S Microwave ovens for a few years. Recently one of them broken down. When I opened up the oven, I observed that the wires from one connector is burned. It must be due to overheat on the connector. I took out the connector to examine. It is badly burned up. I was surprised, if the wires is not burned to the point that got it disconnected, it can cause fire.
I opened the other microwave oven of the same model, it is obvious that the same connector also got overheated, as the while wires that connected to it has turned black, although it is not disconnected.
The product is listed as consuming 1250W and the label on the unit says the input is 12.7A. However, when I measured both units, they took over 1900W and over 16.7 A.
I have pictures that can be included for investigation.

Model
NN-SD967S
Serial number
6B50240310
Bought from
Amazon.com
Bought
Jul 21, 2010
Where
Sunnyvale, California: Home/Apartment/Condominium
Who was involved
Unknown
The reporter’s relation to them
Unspecified
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(2/9/2015) Panasonic Corporation of North America: Panasonic is committed to engineering and manufacturing safe, quality consumer products. All of Panasonic’s products are designed to meet or exceed Underwriters Laboratories, Inc. (UL) safety standards, and all applicable government regulations.
The consumer advised he owns two Panasonic microwave ovens model NN-SD967S. Recently one broke down and when he opened it he observed a burned wire from a connector. He claimed the burn was due to overheating. He opened the second microwave oven and claimed that the same connector in that oven was black.
In regards to the overheating at the wire terminal, it should be noted that there was no evidence of fire ignition. In addition, in the event of an abnormal situation the unit is designed to detect such abnormality and shut itself off to prevent any safety hazards.
Judging by the consumer’s measurement results, he measured the input current using a method inconsistent with the methodology specified in the applicable UL standard for microwave ovens.
Panasonic has contacted the consumer in order to obtain the units for examination and testing. Without having an opportunity to evaluate the units, Panasonic cannot comment further on the events reported at this time.

CPSC report 20150109-D17F5-2147436734. Submitter: Consumer Search for it on SaferProducts.gov
Not said
Made Nov 30, 2014, sent to the company Dec 8, 2014, published by CPSC Dec 22, 2014

The product, in the report: Panasonic Genius Microwave / Convection Oven NN-CD989S Stainless Steel

I bought a Panasonic Microwave NN-CD989S in Jan 2013. Last month (Oct 31 ‘14), when I was warming up some food, there was a spark and there was a strong smell of burnt rubber. Fortunately, the house fuse tripped and the unit shut down. Later I found that the Inverter on the microwave was blown causing an electrical fire.

Model
NN-CD989S
Serial number
6B52160001
Bought from
Amazon.com
Bought
Jan 30, 2013
Where
CYPRESS, California: Home/Apartment/Condominium
Who was involved
Unspecified
The reporter’s relation to them
Unspecified
As this report names them
Brand Panasonic Genius, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Unspecified

The company’s comments, in its own words

(12/16/2014) Panasonic Corporation of North America: Panasonic is committed to engineering and manufacturing safe, quality consumer products. All of Panasonic’s products are designed to meet or exceed Underwriters Laboratories, Inc. (UL) safety standards, and all applicable government regulations.
The consumer in this case advised that their Panasonic microwave oven model NN-CD989S was warming up food when there was a spark and a smell of burnt rubber. The house circuit breaker tripped.
Panasonic referred the consumer to a local service technician for a repair. Then the damaged component was provided to Panasonic for an evaluation. Based on analysis of the component, it was evident that a random malfunction, such as an overvoltage condition on the branch circuit powering the microwave oven, had occurred. Such a malfunction does not present a safety hazard because the unit is designed to detect this condition and shut itself off, which is what transpired in this case. Further, there was no evidence of fire ignition.
(1/26/2015) Panasonic Corporation of North America: Panasonic was given the opportunity to examine the damaged component returned from the servicer. The examination revealed that an overheating condition occurred, most likely from an overvoltage condition on the branch circuit powering the microwave oven. The condition did not present a safety hazard because the unit is designed to detect this type of occurrence and shut itself off, which is what transpired in this case. Further, there was no evidence of fire ignition.

CPSC report 20141130-231FB-2147438390. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Oct 28, 2014, sent to the company Nov 6, 2014, published by CPSC Nov 25, 2014

The product, in the report: Panasonic Microwave

1 year old Panasonic Microwave Modle NN-SA6615 caught fire when melting chocolate in a glass bowl. The fire stopped when the microwave was disconnected and started again with nothing in it when we tried restarting for a few seconds. No one was injured

Model
NN-SA6615
Serial number
6H93060389
Bought from
Walmart, Texas
Bought
Jan 14, 2014, about then
Where
Frisco, Texas: Home/Apartment/Condominium
Who was involved
Unspecified
The reporter’s relation to them
Unspecified
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(11/12/2014) Panasonic Corporation of North America: Unknown Consumer – 20141028-FC81C-2147439466 (MWO NN-SA6615)
Panasonic is committed to engineering and manufacturing safe, quality consumer products. All of Panasonic’s products are designed to meet or exceed Underwriters Laboratories, Inc. (UL) safety standards, and all applicable government regulations.
The consumer in this case advised that their Panasonic microwave oven model NN-SA6615 caught fire while melting chocolate in a glass bowl. The fire stopped when the microwave oven was disconnected and started again with nothing in it when the consumer tried restarting it. The consumer did not provide contact information for Panasonic to obtain the unit for testing. Without having an opportunity to evaluate the unit Panasonic cannot conclusively comment on the event. However, based on the consumer’s description of the event, it is possible that the chocolate was heated beyond melting, depleting all the moisture in the chocolate. This likely led to microwave energy feeding back to the magnetron (the device which generates microwave energy) causing arcing (not a fire) within the cavity of the unit. When microwave oven cooking, it is important not to operate the microwave oven at no load (with no food or food with minimal or no moisture). Operating the microwave oven at no load can cause the magnetron to overheat, arc and become damaged. Furthermore, low moisture food can ignite if overheated. Instructions on safe microwave oven cooking are provided with the product and should be followed.

CPSC report 20141028-FC81C-2147439466. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Mar 16, 2014, sent to the company Mar 25, 2014, published by CPSC Apr 8, 2014

The product, in the report: Genius Sensor 1200W Inverter counter top microwave oven.

Melting butter in a microwave safe ceramic mug when the microwave began smoking. Microwave then stopped working and the smell of burning plastic was very noticeable. Unplugged the microwave and looked inside, there was a burned area the size of a quarter just above the metal part that is on the wall of the microwave.

Model
NN-SN671S
Serial number
6F93160868
Bought from
Target, California
Bought
Nov 7, 2013
Where
Mountain View, California: Home/Apartment/Condominium
Who was involved
Unspecified
The reporter’s relation to them
Unspecified
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(4/8/2014) Panasonic Corporation of North America: Panasonic is committed to engineering and manufacturing safe, quality consumer products. All of Panasonic’s products are designed to meet or exceed Underwriters Laboratories, Inc. (UL) safety standards, and all applicable government regulations.
In this case the consumer reported that smoke emanated while melting butter in a microwave oven safe ceramic mug. The consumer also reported the smell of burning plastic and a burned area at the right side wall of the cooking cavity.
At Panasonic’s request, the consumer returned the microwave oven for evaluation. Inspection revealed overheating above the wave guide cover at the location reported by the consumer. Food residues are evident above the wave guide cover. Concentration of energy can result from food adhering to the cavity wall of the cooking cavity. The operating instructions advise the consumer to clean the oven cavity after every use. This incident is most likely the result of failure to properly clean the oven and is not a safety issue.
We appreciate the cooperation of the consumer in bringing this information to our attention and in allowing us the opportunity to evaluate the incident. Evaluation of the product helps us to assure that our products are safe and to improve their performance.

CPSC report 20140316-A913A-2147446321. Submitter: Consumer Search for it on SaferProducts.gov
Not said
Made Nov 21, 2013, sent to the company Dec 2, 2013, published by CPSC Dec 16, 2013

The product, in the report: Panasonic microwave Model # NN-T945SF 1250 W Genius Sensor -Stainless Steel.

On August 31, 2013, my Panasonic microwave Model # NN-T945SF 1250 W Genius Sensor caught fire while heating food for 2 minutes. The product is under warranty. It was purchased in October 2012. This product was manufactured in Mexico. I contacted Panasonic and they asked me to send it to a vendor for repairs. After about three weeks with the vendor I picked up the oven. On November 19, 2013, while heating food, I smelt a burning wire and saw a sparkle of fire. The oven broke down again. On both occasions I was standing by the oven and quickly unplugged it from the electrical outlet.

Model
Model # NN-T945SF
Serial number
6B72051381
Bought from
Walmart
Bought
Oct 16, 2012, about then
Where
Woodbridge, Virginia: Home/Apartment/Condominium
Who was involved
Unspecified
The reporter’s relation to them
Unspecified
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Unspecified

The company’s comments, in its own words

(12/12/2013) Panasonic Corporation of North America: Panasonic is committed to engineering and manufacturing safe, quality consumer products. All of Panasonic’s products are designed to meet or exceed Underwriters Laboratories, Inc. (UL) safety standards and all applicable government regulations.
In this case the consumer reported that he had previously had the unit repaired by a servicer and approximately 6 weeks later, while heating food, he smelled a burning wire and saw sparks.
Panasonic contacted the consumer and he agreed to return the unit for evaluation. We have just received the unit and have not had time to evaluate the unit in order to specifically respond to the occurrence. Panasonic appreciates the cooperation of the consumer in providing the unit and will supplement this report with our findings as soon as the evaluation has been completed.
(2/11/2014) Panasonic Corporation of North America: This is to supplement our initial response based on evaluation of the unit.
The consumer in this case advised that he was using the microwave oven for about two minutes when he noticed a flame inside, followed by smoke. The consumer sent us the unit for an evaluation. Our evaluation revealed evidence of a component malfunction, which overheated and caused smoke release. There is no evidence of fire ignition. Internal safety features are designed to shut the microwave oven off in the event of an overload condition. In this case, the thermal cut-off, one of the internal safety features, activated as designed to shut the unit down safely. This incident does not present a safety hazard. The consumer has accepted Panasonic’s offer of a replacement unit. We thank the consumer and the CPSC for bringing this incident to our attention.

CPSC report 20131121-4C34B-2147449715. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Aug 11, 2013, sent to the company Aug 19, 2013, published by CPSC Sep 3, 2013

The product, in the report: Inverter Mircrowave

Melting butter in a glass [REDACTED] dish for 30 seconds. After about 4 seconds the microwave began arcing in the area between the door seals and was immediately turned off. Plastic around lower door seal has melted and the unit has not been used since. My safety concern is that had this occurred unattended the microwave leakage would have continued, the melting and arcing would have continued and it’s possible a fire may have started.

Model
NN-SD997s
UPC
I don’t know
Serial number
6A43120446
Bought from
Amazon.com
Bought
Jul 1, 2013, about then
Where
Madison, Alabama: Home/Apartment/Condominium
Who was involved
Age 38, Female
The reporter’s relation to them
My Spouse
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(8/29/2013) Panasonic Corporation of North America: Panasonic is committed to engineering and manufacturing safe, quality consumer products. All of Panasonic’s products are designed to meet or exceed Underwriters Laboratories, Inc. (UL) safety standards, and all applicable government regulations. In this case the consumer reported that he was heating butter in a glass dish. After approximately 4 seconds, arcing occurred in the area between the door seals allegedly resulting in some melting of the plastic around the lower door seal.
Panasonic contacted the consumer and he agreed to return the unit for evaluation. At this time we have not received the unit and are unable to specifically respond to the occurrence. Panasonic appreciates the cooperation of the consumer in providing the unit and will supplement this report with our findings once it is received.
(9/12/2013) Panasonic Corporation of North America: Panasonic appreciates the cooperation of the consumer in providing the unit for evaluation. The consumer contacted Panasonic on August 2, 2013 and reported that there appears to be a defect in the inner cavity and it is allowing radiation through.
Our evaluation of the unit revealed that the radiation level is well below Government allowable limits. A radiation emission test was also conducted in accordance with Underwriters Laboratories, Inc. UL 923 safety standard for microwave ovens and resulted with readings well below its allowable limit.
Our evaluation also revealed arcing, which occurred between the metal frame of the door and the front frame of the microwave oven. This type of arcing can occur particularly if food particles are left between the two surfaces. Other possibilities of arcing can occur, if the microwave oven is operated without food, cooking food with low moisture content, or overcooking any portion of food. The exact cause of the arcing could not be determined, but the incident does not present a safety hazard.

CPSC report 20130811-EF5D9-2147453204. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made May 2, 2013, sent to the company May 20, 2013, published by CPSC Jun 4, 2013

The product, in the report: counter top microwave oven

The consumer placed a bowl of instant grits in the microwave oven and turned it on. The bowl was ceramic. Within 2 seconds of starting the microwave, smoke began billowing from the bottom of microwave (and in front of the door) and he noticed an electrical burning odor. The consumer turned the microwave off, by using the control feature and then he unplugged it from the wall outlet.
The items that were placed inside the microwave were not damaged and the food did not even get warm
The consumer has never had any problems in the past with this microwave.
(5/2/2013) The consumer called the manufacturer and he was transferred to a rep. (name unknown). The rep. took some information from the consumer and told him that someone would give him a call back within 24 hours. The consumer was advised to discontinue use of the microwave oven and he does not plan to use any more.
The manufacnturer’s rep.. gave the consumer a reference # [REDACTED].
UPDATE: I received a phone call from a Panasonic representative and all she said was that the microwave needed maintenance. No offer made by Panasonic to fix it.

Model
NN-T945SFX
Serial number
6A39200211
Bought from
Wal-Mart, South Carolina
Bought
Aug 1, 2009
Where
Easley, South Carolina: Home/Apartment/Condominium
Who was involved
Male
The reporter’s relation to them
Self
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(6/4/2013) Panasonic Corporation of North America: Panasonic is committed to engineering and manufacturing safe, quality consumer products. All of Panasonic’s products are designed to meet or exceed Underwriters Laboratories, Inc. (UL) safety standards, and all applicable government regulations.
The consumer in this case reports placing a ceramic bowl of instant grits in the microwave oven. Within 2 seconds of starting the microwave, smoke was emitted from the bottom of microwave (and in front of the door) and he noticed an electrical burning odor. The consumer turned the microwave off, by using the control feature and then he unplugged it from the wall outlet. According to the consumer the unit was purchased on August 1, 2009 and the consumer had never had any problems in the past with this microwave.
The consumer contacted Panasonic and was provided with a pre-paid mailer to return the unit for evaluation. As of this date the unit has not been received.
Panasonic does not believe that this claim presents a safety hazard. Based on the consumer’s reported observations it is possible that there was a component failure in the unit. The unit is designed to shut down safely in case of such an event. We have not received the unit for evaluation to determine the actual cause of the event the consumer reported. When the unit is received it will be evaluated and this response will be supplemented to report the findings.
(7/10/2013) Panasonic Corporation of North America: This is in further response to our prior comments on this matter.
The consumer returned the unit so that our engineers could evaluate the product and the consumer’s claim. Evaluation of the unit revealed a component failure, on the PCB (Printed Circuit Board). Prior testing of the microwave ovens has demonstrated that there is no risk of fire ignition from such an incident. This component is constructed of fire retardant materials and meets all applicable UL requirements to prevent fire ignition. Although there was smoke emanation, there was no fire ignition. Based on our evaluation and testing results the claim does not present a safety hazard.
We appreciate the cooperation of the consumer in bringing this information to our attention and in allowing us the opportunity to evaluate the incident. Evaluation of the product helps us to assure that our products are safe and to improve their performance.

CPSC report 20130502-5F81F-1324944. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Dec 24, 2012, sent to the company Jan 14, 2013, published by CPSC Jan 29, 2013

The product, in the report: Panasonic 1250W microwave oven

My Panasonic microwave, model NN T945SF, stopped working and gave an error message. I restarted the clock and restarted the microwave 3 additional times. Next I smelled smoke, the circuit interrupter turned off the electricity at the plug and one of the prongs on the plug had blackened. The manufacture date is 12-05 for the unit. It is a large, 1250 watt unit.

Model
Panasonic Inverter Microwave Oven/NN T945SF
Serial number
6AD5190715
Bought from
Walmart, Virginia
Bought
Mar 15, 2006, about then
Where
Yorktown, Virginia: Home/Apartment/Condominium
Who was involved
Age 61, Male
The reporter’s relation to them
Self
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(1/28/2013) Panasonic Corporation of North America: Panasonic is committed to engineering and manufacturing safe, quality consumer products. All of Panasonic’s products are designed to meet or exceed Underwriters Laboratories, Inc. (UL) safety standards, and all applicable government regulations. In this case the consumer reported that his microwave oven stopped working and displayed an error message. He restarted the clock three times and then smelled smoke. The circuit breaker tripped and he noticed that one of the plug prongs was blackened.
Panasonic contacted the consumer and offered to test the unit to determine the cause of the problem. The consumer agreed to return the unit, but to date it has not been received. In order to determine the cause of the event we will need to evaluate the unit. However, based on the description of incident we believe, (1) The error code most likely reported a random component malfunction (we were not informed of the specific code), (2) The report of the circuit breaker tripping suggests an overload condition which may have occurred at the outlet, or at the random component failure inside the unit, and (3) The report of blackened plug prongs indicates that the outlet may be defective and require replacement.
All components inside the microwave oven are constructed of fire retardant materials and meet all applicable UL requirements to prevent fire ignition and shock hazards.
We will update the Commission upon completion of our evaluation after we have received the unit from the consumer.
(2/27/2013) Panasonic Corporation of North America: Panasonic appreciates the cooperation of the consumer in providing the unit for evaluation. The consumer reported that his microwave oven stopped working and displayed an error message. He restarted the clock three times and then smelled smoke. The circuit breaker tripped and he noticed that one of the plug prongs was blackened.
Our evaluation of the unit revealed no evidence of internal component overheating or damage. Testing revealed that the unit is in normal working order. However, the power cord’s plug blade (live) has overheated and has blackened due to a defective plug receptacle. The consumer was advised to have the plug receptacle outlet used for the microwave oven replaced by a licensed electrician to prevent a re-occurrence of this incident. The microwave oven’s power cord was replaced as a gesture of consumer good-will.

CPSC report 20121224-F23AF-2147460704. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Jul 20, 2012, sent to the company Sep 4, 2012, published by CPSC Sep 18, 2012

The product, in the report: Stand alone microwave

The consumer stated that on 07/16/2012 he heard a loud sound. The consumer stated that he was sitting approximately 12’ away from where the microwave was located. He stated that he looked back and noticed that the towel that was on top of the microwave was burning. The consumer stated that the fire seemed to have started from the back of the microwave. The consumer stated that he had not used it that day and it was not in use when he heard the loud sound.
The consumer stated that he can estimate the flame on the towel went up approximately 4” high. He stated that he noticed discoloration on the back of the microwave, burnt marks on the back tile wall of the kitchen and the burnt towel.
The consumer stated that he grabbed the towel and he placed it in the sink to put the flames out. The consumer stated that he unplugged the microwave.
The consumer stated that he was not injured.
The consumer stated that he contacted the manufacturer and they requested for him to mail the microwave back to the firm. He stated that the representative informed him that once he mailed it to the firm; they would evaluate and get back to him.
The consumer stated that he decided to take the product back to the retailer and they exchanged the microwave for him.
The consumer stated that this product should be investigated for the fire hazard that it poses to the consumer.

Model
NN-SD969
UPC
Unknown
Serial number
Unknown
Bought from
Cosco, Washington
Bought
Aug 17, 2006
Where
Burien, Washington: Home/Apartment/Condominium
Who was involved
Male
The reporter’s relation to them
Unspecified
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(9/12/2012) Panasonic Corporation of North America: Panasonic is committed to engineering and manufacturing safe, quality consumer products. All of Panasonic’s products are designed to meet or exceed Underwriters Laboratories, Inc. (UL) safety standards, and all applicable government regulations.
In this case the consumer reported that he was sitting about 12 feet from his microwave oven (mwo) when he heard a loud sound. He saw that a towel on the top of the mwo was burning. He had not used the mwo that day and it was not in use at the time of the incident.
The consumer contacted Panasonic and was asked to mail the unit back to the company. The consumer states that Panasonic informed him that the company would evaluate the unit and get back to him. Rather than send the unit to Panasonic with the pre-paid mailer provided, the consumer decided to take the unit to the Retailer for an exchange. When Panasonic learned of the consumer’s action it contacted the Retailer to attempt to obtain the unit. The Retailer advised that it had already discarded the unit and it could not be recovered.
Panasonic is conscientious about following up all Reports of Harm by consumers to evaluate possible safety or quality issues. Without the unit, it is not possible to conduct an analysis to determine what the possible cause may have been. The unit had not been in use by the consumer that day and based on our experience we do not believe the mwo was the cause.

CPSC report 20120720-4CCFF-1260851. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Jul 16, 2012, sent to the company Aug 3, 2012, published by CPSC Aug 17, 2012

The product, in the report: Panasonic Microwave Oven Tabletop Model NN-SN671S

I purchased a Panasonic microwave oven in November of 2011. I recently noticed that the oven was becoming increasingly hot when heating things in the oven. I noticed a charred area on the interior of the oven near the magnetron. The plastic had partially melted and was blackened. The area was approximately 1 inch by by an inch and a half. It appears to be located adjacent to the magnetron which is located on the right side of the oven behind the control panel. There was also paint peeling on the left side of the oven on the upper left edge of the door and the door opening. The item model number is NN-SN671 S. It was manufactured in September of 2011 in China. My concern is that the area where the charred surface appears might begin burning and start a fire if the plastic reaches its ignition point. I do not know whether this is an isolated incidence or whether similar units made in China will experience similar episodes. I believe that this matter needs to be investigated in order to prevent a more severe event such a fire to occur. Thank you for your consideration

Model
NN-SN671S
Serial number
6B91161685
Bought from
Target, Minnesota
Bought
Nov 1, 2011, about then
Where
Westminster, California: Home/Apartment/Condominium
Who was involved
Unspecified
The reporter’s relation to them
Self
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(8/14/2012) Panasonic Corporation of North America: Panasonic is committed to engineering and manufacturing safe, quality consumer products. All of Panasonic’s products are designed to meet or exceed Underwriters Laboratories, Inc. (UL) safety standards, and all applicable government regulations.
The consumer in this case advised that he noticed a charred area within the microwave oven’s cooking cavity, near the magnetron. The consumer sent photos of the affected area that enabled our engineers to determine the magnetron antenna had overheated.
Panasonic does not believe that this claim presents a safety hazard. The magnetron is totally enclosed by metal and nonflammable material. Furthermore, internal safety features are designed to shut the microwave oven off in the event of an overload condition.
Panasonic fully reimbursed the consumer for the cost of the unit. We thank the consumer and the CPSC for bringing this incident to our attention.

CPSC report 20120716-CCB93-1259983. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Apr 15, 2012, sent to the company Apr 23, 2012, published by CPSC May 7, 2012

The product, in the report: Microwave oven

Panasonic Model NN-SD698S / SD688S
This microwave is 2 years old. The microwave was not used on Friday April 13th 2012. At approximately 10PM on the 13th a slight smell of hot or burning electronics was noticed in the kitchen. A quiick investigation did not find any abnormalities, the microwave was not specifically inspected but the trash can next to the microwave was closely investigated. The smell was not noticed on Saturday April 14th. However, at approximately 5PM on the 14th the microwave was used warm some plates (set on intensity of 10 for about 2 minutes). The microwave became very very hot and shut down. The external case was too hot to touch, particularly on the right side and top. After cooling down the unit still works intermittently.

Model
NN-SD698S / SD688S
Bought
Apr 26, 2010
Where
Ashland, Ohio: Home/Apartment/Condominium
Who was involved
Unknown
The reporter’s relation to them
Self
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(5/4/2012) Panasonic Corporation of North America: Panasonic is committed to engineering and manufacturing safe, quality consumer products. All of Panasonic’s products are designed to meet or exceed Underwriters Laboratories, Inc. (UL) safety standards, and all applicable government regulations.
The consumer in this case advised that he was using the microwave oven to warm some plates and the oven became very hot and shut down. The consumer further advised that after cooling down, the microwave works intermittently. Microwave ovens will heat up if run without food or liquid in the oven cavity and the Operating Instruction manual provided with the unit advises the consumer not to use the microwave oven for any purpose other than cooking or heating food or liquids. .
Upon receipt of the notice, Panasonic contacted the consumer and was advised the unit had been returned to the seller. Panasonic then contacted the seller and arranged to have the unit sent in for evaluation. The unit has not been received at this time.
Panasonic does not believe that this claim presents a safety hazard. The microwave oven’s internal safety features are designed to shut the microwave oven off in the unlikely event of an overload condition which might occur from operation without food or liquid in the cavity. Once this microwave oven is received it will be evaluated and a supplemental report with our findings will be submitted.

CPSC report 20120415-DB1B3-2147468393. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Feb 29, 2012, sent to the company Mar 30, 2012, published by CPSC Apr 13, 2012

The product, in the report: Countertop microwave oven.

The consumer says the label on the oven, and the specification in the operating instructions booklet show power consumption 12.7 amps. The booklet shows 1460 watts. The consumer measured it using two different instruments with the same results of 16.4 amps on full power. The consumer measured 1950 watts on another instrument and on the utility’s meter. What he measured would require a 20 amp circuit as is stated in the manufacturer’s booklet.
The consumer says the unit does not come with a 20 amp plug which means a consumer could plug it into a 15 amp outlet, overloading the outlet and possibly tripping the breaker. The booklet is the only place where it advises to use a 20 amp circuit. The consumer contacted the manufacturer who told him he is not measuring it right. The consumer disagrees. The consumer contacted the manufacturer who asked him to ship it back. The consumer had a different microwave with same brand and same model number and the same hazard. The Consumer Added: The reader of my complaint should be made aware that, as permitted by the National Electric Code (NEC), residential kitchens rarely have 20 amp outlets on the 20 amp “s mall appliance circuits” that are required along the kitchen counters. The st andard outlets are 15 amp “duplex receptacles” with a 20 amp feed-through rating. This means these outlets are permitted to be on 20 amp circuits but that appliances plugged into them must be limited to 15 or 12 amps, depending on the length of time the appliance can be set t o operate. The only appliances in our kitchen that exceed 12 amps is our 4-s10t toaster; it draws 15 amps, but is designed not to operate continuously for more than a few minutes. Thi s microwave oven seems capable of running for an hour or more and thus may be l i mited t o 12 amps by the NEC or UL. The Panasonic Canada web site lists similar mi crowaves, but they all have lower output wattage ratings. I suspect the Canadian Standards Associat ion (CSA) or UL Canada required this reduction t o lower the amp draw to 12 amps. I have a l ot more faith in Canada than in the US when it comes electrical equipment. When I replaced all the outlets and switches in my home about 25 years ago I made sure they all had CSA approvals on them. One reason I decided to check the amperage of my Panasonic microwave oven it because it is not approved by CSA or Canadian UL.

Model
NN-SN797S
Serial number
6BN1050479
Bought from
Cosco, Colorado
Bought
Feb 17, 2012
Where
Colorado: Unspecified
Who was involved
Male
The reporter’s relation to them
Self
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(4/20/2012) Panasonic Corporation of North America: Panasonic is committed to engineering and manufacturing safe, quality consumer products. All of Panasonic’s products are designed to meet or exceed Underwriters Laboratories, Inc. (UL) safety standards, and all applicable government regulations.
The subject model meets all applicable UL safety standards and complies with all applicable requirements of the Canadian Standards Association (the counterpart safety agency in Canada).
Panasonic contacted the consumer and offered to test his particular unit to ensure that it is in compliance with UL standards, but the consumer refused. We believe that the consumer may not have measured the microwave oven’s input current and power in accordance with UL’s (and CSA’s) applicable standards and industry practices.
In any event, the consumer’s claim does not present a safety hazard.

CPSC report 20120229-C069F-1234619. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Feb 4, 2012, sent to the company Feb 16, 2012, published by CPSC Mar 2, 2012

The product, in the report: Counter top microwave oven,

Microwave oven is unsafe as it draws far more amps and watts than its label states.
It draws 16.4 amps and uses 1950 watts on high. The label states it uses only 12.7 amps and 1460 watts.
The Operating Instructions booklet states, “The oven must be plugged into at least a 20 AMP, 120 VOLT, 60 Hz GROUNDED OUTLET.” Yet it has only a 15 amp plug. Nothing on the oven itself says it requires a 20 amp outlet; the amp rating and the plug are clear indications a 15 amp outlet is OK.
When I called Panasonic they transferred me a and “engineer” who told me the high amp and wattage draw is OK and that I could take it to one of their warranty shops to be checked if I wanted to.

Model
NN-SN797S
Serial number
6F81030247
Bought from
Costco, Colorado
Bought
Nov 8, 2011
Where
Wheat Ridge, United States: Home/Apartment/Condominium
Who was involved
Unspecified
The reporter’s relation to them
Unspecified
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(3/1/2012) Panasonic Corporation of North America: Panasonic is committed to engineering and manufacturing safe, quality consumer products. All of Panasonic’s products are designed to meet or exceed Underwriters Laboratories, Inc. (UL) safety standards, and all applicable government regulations. In this case the consumer reported that the microwave oven is unsafe as it draws far more current and power than its label states.
Panasonic asked that the consumer return the unit for evaluation in order to verify the consumer’s observation. However, the consumer has indicated he will not return the unit. The consumer did advise that he has the microwave oven connected to a line that also powers his refrigerator. The product operating manual instructs that the microwave oven should be connected to a dedicated 20-Amp circuit to avoid nuisance tripping on a 15-Amp or a shared circuit. Further, judging by the nature of consumer’s claim, it appears that the consumer is not measuring the input current in accordance with UL’s testing procedures and this is what is causing the variations in his readings.
If we are able to secure the unit, we will evaluate it and report the results of our findings in a supplemental response.

CPSC report 20120204-32E0C-2147470580. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Jan 13, 2012, sent to the company Jan 24, 2012, published by CPSC Feb 7, 2012

The product, in the report: 1300 watt microwave oven with turntable.

While cooking a bowl of soup, microwave hummed loudly, then emitted flames and thick smoke from underneath. This was not the food burning, but something electrical in the unit underside which caught fire. This microwave was well maintained, and used for residential not commercial use.

Model
NN-H665BF
Serial number
6B75050381
Bought from
best buy, Pennsylvania
Where
reinholds, Pennsylvania: Home/Apartment/Condominium
Who was involved
Age 42, Male
The reporter’s relation to them
Self
As this report names them
Brand panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(2/6/2012) Panasonic Corporation of North America: Panasonic is committed to engineering and manufacturing safe, quality consumer products. All of Panasonic’s products are designed to meet or exceed Underwriters Laboratories, Inc. (UL) safety standards, and all applicable government regulations. .
Panasonic has contacted the consumer in this case to obtain the unit for evaluation, to determine the cause of the incident. The consumer reported that flames and thick smoke emanated from underneath the unit. He has agreed to send us the unit for our evaluation. Once received, we will evaluate the unit and report the results of our findings to the Commission in a supplemental response.
(2/24/2012) Panasonic Corporation of North America: The consumer returned the unit so that our engineers could evaluate the product and the consumer’s claim.
Evaluation of the unit revealed a component failure in the part of PCB (Printed Circuit Board). Prior testing of the microwave ovens has demonstrated that there is no risk of fire ignition from such an incident. This component is constructed of fire retardant materials and meets all applicable UL requirements to prevent fire ignition. Although there was smoke emanation, there was no fire ignition. Based on our evaluation and testing results the claim does not present a safety hazard.
We appreciate the cooperation of the consumer in bringing this information to our attention and in allowing us the opportunity to evaluate the incident. Evaluation of the product helps us to assure that our products are safe and to improve their performance.

CPSC report 20120113-7B980-2147471344. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Nov 18, 2011, sent to the company Dec 21, 2011, published by CPSC Jan 6, 2012

The product, in the report: Microwave (countertop)

Consumer stated that while the microwave was in use for approximately 30-60 secs, flames started to emit from underneath towards the front. The counter top had black soot but was not physically damaged. It was immediately unplugged and a dish rag was used to dissolve the flames. The microwave had not been used since the incident.
11/6/11 Consumer contacted the manufacturer through email but was advised that they had not received any reports on those microwaves and would not be able to compensate him. Consumer is concerned that this microwave poses a fire hazard and should be reported.
Consumer added: Manufacturer contacted him again and he shipped them the microwave in question.

Model
NNS542BF
UPC
n/a
Serial number
6H92101496
Bought from
Unknown
Bought
Nov 1, 2001, about then
Where
Bayonne, New Jersey: Home/Apartment/Condominium
Who was involved
Unspecified
The reporter’s relation to them
Unspecified
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(1/3/2012) Panasonic Corporation of North America: Panasonic is committed to engineering and manufacturing safe, quality consumer products. All of Panasonic’s products are designed to meet or exceed Underwriters Laboratories, Inc. (UL) safety standards, and all applicable government regulations.
In this case, the consumer reported that flames emanated from under the front of the microwave oven during use and that black soot was released.
Panasonic obtained the unit from the consumer for evaluation. Based on observations and testing, we have concluded that a random malfunction occurred on a surge suppressor component. This was likely the result of an over-voltage condition.
There is no evidence to support the customer’s claim that flames emanated from the unit. There is no evidence of fire damage, soot, smoke damage, or overheating in the bottom enclosure or underneath the inverter board. Further, all components involved are manufactured of flame retardant materials.
In closing, it is evident that there was a random malfunction of the surge suppressor. However, its malfunction does not present a safety hazard.

CPSC report 20111118-892D7-1215413. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Jun 15, 2011, published by CPSC Jul 8, 2011

The product, in the report: Microwave oven, Panasonic model # NN-S954WF; serial # 6AO4280171

Product is a Panasonic microwave oven, model # NN-S954WF; serial number 6AO4280171; date of manufacture: 10/2004
Over the past years we have owned this microwave there has been problems with the electrical interlock that permits the microwave to operate when the door is closed and shuts off the unit when the door is opened.
There has been a burning smell and the door interlock has malfunctioned. Upon examination (after the warranty period), the wiring is burned and the connector melted connected to one of the door interlock switches. When the unit is operating and the door is opened there is a spark coming out of the switch, which has burned the wiring, caused the burning smell, and melted the connector. Even when wiring and connector were replaced, the wiring burned and connector became damaged and burning smell persisted.
Not wanting to use this unit any longer, we called the company to find out if the interlocking electrical system is currently used in their oven and their representative said the same mechanism is being used.

Model
Microwave oven, Panasonic model # NN-S954WF
Serial number
6AO4280171
Bought from
Best Buy
Where
Glenside, Pennsylvania: Home/Apartment/Condominium
Who was involved
Unspecified
The reporter’s relation to them
Unspecified
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(7/7/2011) Panasonic Corporation of North America: Panasonic is committed to engineering and manufacturing safe, quality consumer products. All of Panasonic’s products are designed to meet or exceed Underwriters Laboratories, Inc. (UL) safety standards, and all applicable government regulations. In this case the consumer reported problems with the interlock switch over “the past years”. The consumer claims the wiring is burned and the connector to one of the switches melted.
A week prior to filing this report the consumer contacted the Panasonic Customer Experience Group and advised that he and a friend had replaced wiring for the latch switch of this 2004 microwave oven on two occasions. Repairs of microwave ovens should only be performed by properly qualified service agents. Statements to that effect appear on the rear panel of the unit and on page 2 of the Operating Instructions manual (please see attachments) and tamper resistant screws are used to further discourage consumer servicing.
Panasonic cannot determine the possible cause of the melted wires without examination of the unit. The microwave oven is constructed of fire retardant materials and meets all applicable UL requirements to prevent fire ignition. Testing of Panasonic microwave ovens has demonstrated that there is no risk of fire ignition from the component parts. The consumer has agreed to return the unit for inspection and Panasonic will supplement this report, provided the unit is returned.

CPSC report 20110615-90E38-2147478189. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Jun 13, 2011, published by CPSC Jul 6, 2011

The product, in the report: Counter-top microwave

While heating food, microwave oven built into kitchen cabinets caught fire from back (not inside cooking cavity). Smoke and flames from back of oven. Removed oven to counter and turned on again - same fire/smoke from behind control panel.

Model
NN-T664SF
Bought from
Target, California
Bought
Sep 1, 2006, about then
Where
San Rafael, California: Home/Apartment/Condominium
Who was involved
Age 55, Male
The reporter’s relation to them
Self
As this report names them
Brand Panasonic, made or sold by Panasonic Corporation of North America
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(7/5/2011) Panasonic Corporation of North America: Panasonic is committed to engineering and manufacturing safe, quality consumer products. All of Panasonic’s products are designed to meet or exceed Underwriters Laboratories, Inc. (UL) safety standards, and all applicable government regulations. In this case the consumer reported smoke and flames behind the control panel of his microwave oven.
We believe that what the consumer saw as “flames” may actually have been sparking in the area behind the control panel. The microwave oven is constructed of fire retardant materials and meets all applicable UL requirements to prevent fire ignition. Prior testing of Panasonic microwave ovens has demonstrated that there is no risk of fire ignition. Unfortunately the exact cause of the incident cannot be determined as the consumer has declined to return the unit for inspection and evaluation of the claim.

CPSC report 20110613-4B4BF-2147478248. Submitter: Consumer 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 Nov 5, 2026 and checked Nov 5, 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.

Panasonic microwave ovens

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