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Mainstays microwave ovens

5 reports to CPSC, the latest made Jul 7, 2025. A report isn’t a recall.

Watch it to hear when CPSC publishes new reports about it. CPSC’s own search, on saferproducts.gov

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At a glance

From SaferProducts.gov, released Oct 25, 2026.

  • 5reports to CPSC
  • Jul 7, 2025the latest report was made
  • Feb 26, 2020the earliest
  • 1with the company’s comments
Brand
Mainstays
Maker
Walmart Stores Inc.Makers, 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 (1)

“Mainstay”

By month

1 report from August 2024 to July 2025; the most in July 2025, 1. 4 earlier reports, since February 2020, are in the table.
The numbers, as a table
Reports to CPSC by the month each was made, newest first
MonthReports
July 20251
December 20221
November 20211
March 20211
February 20201

How badly anyone was hurt

  • Hospital admission 1 CPSC: Injury, Hospital Admission
  • No one hurt 3 CPSC: Incident, No Injury
  • No incident, no one hurt 1 CPSC: No Incident, No Injury

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

The reports, as CPSC published them

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

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

Source:

CPSC, SaferProducts.gov public database export. Released Oct 25, 2026. Updated daily.

  1. Hospital admission

    Made Jul 7, 2025, sent to the company Jul 10, 2025, published by CPSC Jul 24, 2025

    The product, in the report: Mainstays 0.7 Cu ft Countertop Microwave Oven, 700 Watts, Black. Purchased at Walmart in Lihue Hawaii.

    I was burned by a microwave that turned on when it was open. The food didn’t finish cooking. The screen said LOC. I pressed the door open button and when the door opened the microwave turned on

    Model
    MS8436127995-01
    Bought from
    Walmart, Hawaii
    Bought
    Mar 18, 2025, about then
    Where
    Kapaa, Hawaii: Home/Apartment/Condominium
    Who was involved
    Age 34, Unknown
    The reporter’s relation to them
    Self
    As this report names them
    Brand Mainstays, made or sold by Walmart Stores Inc.
    How badly, in CPSC’s words
    Injury, Hospital Admission
  2. No one hurt

    Made Dec 4, 2022, sent to the company Dec 23, 2022, published by CPSC Jan 10, 2023

    The product, in the report: Mainstays .7 cu ft microwave UPC 190873008804 Red microwave

    Hello, we purchased a Mainstay Microwave .7 cu. Ft. Item # 596688023 UPC 190873008804, from Walmart. It was purchased on Saturday September 26th and today December 4th it caught on fire while heating up chicken nuggets, after 15 seconds of use. The power settings were not adjusted & the chicken nuggets were still cold.

    Model
    model MSF0R100072352
    UPC
    190083008804
    Serial number
    GZMW22D1183957 FCC ID UHW70260006
    Bought from
    Walmart Store 100 Bentonville AR
    Bought
    Nov 26, 2022
    Where
    Bella Vista, Arkansas: Home/Apartment/Condominium
    Who was involved
    Age 37, Unspecified
    The reporter’s relation to them
    Self
    As this report names them
    Brand Mainstays, made or sold by Walmart Stores Inc.
    How badly, in CPSC’s words
    Incident, No Injury
  3. No incident, no one hurt

    Made Nov 4, 2021, sent to the company Nov 8, 2021, published by CPSC Nov 23, 2021

    The product, in the report: Mainstays 0.7 Cu. Ft. 700W Stainless Steel Microwave with 10 Power Levels - Walmartstores.inc 700 Watt Microwave - Bentonville, AK - EM720CWT-PM FCC ID: VG8XM72OCYY-PM Model EM720CWT-PM

    My microwave went on by itself and continued to run. Pushing the stop button and opening the door did not stop the microwave from running. I had to unplug the microwave to get it to power off. Walmart Store Brands.Inc Microwave. No one was using the product at the time. No one was injured.

    Model
    EM720CWT-PM
    Bought from
    Walmart
    Bought
    Nov 2, 2019, about then
    Where
    Paducah, Kentucky: Home/Apartment/Condominium
    Who was involved
    Age 66, Unknown
    The reporter’s relation to them
    Self
    As this report names them
    Brand Mainstays, made or sold by Walmart Stores Inc.
    How badly, in CPSC’s words
    No Incident, No Injury
  4. No one hurt

    Made Mar 19, 2021, sent to the company Apr 29, 2021, published by CPSC May 13, 2021

    The product, in the report: Counter top Microwave

    Caller stated that when she placed some water to heat in the microwave, she heard a crackling noise and approximately 30 seconds returning to the room there was white smoke emitting from the unit. She opened the door and flames were emanating from the interior of the microwave. She stated that she used a pot holder to contain the flames. Caller stated that there a burnt marks on the interior of the unit caused by the incident.

    Caller stated that she contacted the retailer but they did not offer any assistance or did not seem to care that the product was a fire hazard.

    Model
    EM720CGA-W
    Bought from
    Walmart, California
    Bought
    Jul 17, 2020
    Where
    Oakhurst, California: Unspecified
    Who was involved
    Female
    The reporter’s relation to them
    Self
    As this report names them
    Brand Mainstay, made or sold by Walmart Stores Inc.
    How badly, in CPSC’s words
    Incident, No Injury
  5. No one hurt

    Made Feb 26, 2020, sent to the company Mar 5, 2020, published by CPSC Mar 19, 2020

    The product, in the report: Mainstays Microwave Oven EM720CGA-W (white) 700-watts.

    Two weeks ago, I purchased a Mainstays Microwave Oven from Walmart product EM720CGGA-W 700-watts.

    I was melting 1 tablespoon of butter on a 30 sec. cycle. After 15 secs. I heard a POP and FIRE was on the interior right-hand side. I unplugged the unit and let the flame burn-out. The butter was not completely melted, so it was not due to burning butter!

    I’m single and this unit probably had less than an hour in total usage. I only used it to reheat coffee and 2 to 3 minutes to heat meals.

    Model
    EM720CGA-W
    UPC
    3972401325
    Serial number
    340909247069A261300793
    Bought from
    Walmart, Michigan
    Bought
    Feb 5, 2020, about then
    Where
    Harrison Township, Michigan: Home/Apartment/Condominium
    Who was involved
    Age 64, Female
    The reporter’s relation to them
    Self
    As this report names them
    Brand Mainstays, made or sold by Walmart Stores Inc.
    How badly, in CPSC’s words
    Incident, No Injury

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.

Source:

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

Sources

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

    Released Oct 25, 2026 and checked Oct 25, 2026. Updated daily. Public domain (U.S. Government work). CPSC asks to be credited, and that no endorsement be implied.

Source:

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

Back to Microwave ovens

How to read a record

Four things every record does, shown on an example record made up for this guide.

An example record, made up for this guide

An example nursing home

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Not fully inspected in over two years (CMS flag)

11 health citations at the latest inspection cycle

The state average is 14.3.

Source:

CMS, State and US Averages and Health Deficiencies. Released Oct 8, 2026. Updated monthly.

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