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Microwave Fuse Or Sensor

Thermostat (Fixed, Thermal Cut-Off)
Genuine Whirlpool part
By: Whirlpool
Part Number: WP4375079

This fixed thermostat protects the appliance by opening the circuit when excessive heat is detected. Replacing a failed or weak thermostat restores reliable over-temperature protection and helps prevent heat-related shutdowns.

  • Opens the circuit if the protected area overheats to help prevent damage to components
  • Helps with symptoms like unexpected shutdowns during operation or no power after overheating
  • Can be the cause when the unit only runs again after cooling down
  • Helps maintain safe operating temperatures around heat-sensitive parts
What's included: 1 fixed thermostat Installation notes:
  • Disconnect power before servicing; some appliances contain high-voltage components
  • Access location varies by model; note wire positions before removal and transfer one lead at a time
  • Reuse existing mounting hardware; ensure firm terminal connections and correct orientation
  • After replacement, confirm proper airflow/venting and normal operation

Do-It-Yourself Stories from Customers like You Humming sound and burnt smell   Antonio F. • Miami , FL • June 08, 2018

I measured the resistance between the two connectors on the magnetron: should be close to zero ohms and it was. I measured between the same connectors and the metal case: should be mega ohms, it was 15k ohms. That is a bad, partly shorted unit. I also checked the resistance of the thermal cut off, which should be zero but was 10 ohms so I replaced. The HV diode is checked with a 9 V battery (YouTube checking microwave HV diode) and it too was bad. Make sure to take pictures as you disassemble... Read more

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Microwave Thermostat
Genuine Lg part
By: Lg
Part Number: 6930W1A003E

If your microwave shuts off mid-cycle or won't heat, the thermostat may have failed. This safety control monitors temperature and protects components.

Do-It-Yourself Stories from Customers like You Vent fan would stay on for hours after using microwave   David P. • Coon Rapids , MN • March 15, 2017

I replaced the control board behind the keypad. Read more

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Microwave Thermal Cutoff Thermostat
Genuine Ge part
By: Ge
Part Number: WB27X10195

Microwave shuts down during use? This thermal cutoff thermostat prevents overheating by interrupting power when temperatures exceed safe limits.

Do-It-Yourself Stories from Customers like You No pose at all to microwave   Kevin K. • Phoenix , AZ • April 01, 2016

My daughter that she turned timer on but hit cook with nothing in the microwave. I was able to figure it was one of the four thermal cutoffs. It was obvious which one literally fried. Replaced that one worked like it was new. Took a lot of photos while dismantling and labeled the screws. Wasn't that hard just be careful of the capacitor Read more

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Thrmst-Fix
Genuine Whirlpool part
By: Whirlpool
Part Number: W11607085

The Thermal Fuse is an OEM component specifically designed for Whirlpool ovens. As an important safety device, it is located near heat-producing elements inside the oven cavity. 

Causes of a bad thermal fuse include overheating of elements or surrounding components over time, which can eventually blow the fuse. 

Symptoms of a faulty thermal fuse include:

  • The oven failing to heat or operate heating cycles fully
  • Heating elements abruptly shutting off during baking  
  • An unusual burning smell emanating from the oven

This genuine OEM Whirlpool part is compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore oven models as well.

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Microwave Temperature Sensor
Genuine Ge part
By: Ge
Part Number: WB18X10287

Fix microwave shutdowns or uneven heating with a new temperature sensor. Restores accurate temp regulation and consistent cycle timing. DIY repair.

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Microwave Thermal Cutoff Thermostat
Genuine Ge part
By: Ge
Part Number: WB27X11212

Microwave tripping breaker or won't heat? This thermal cutoff thermostat monitors temperature to prevent overheating. Straightforward replacement.

Do-It-Yourself Stories from Customers like You Microwave keep tripping the circuit breaker.   Mark V. • Harrison , NY • February 09, 2021

The door switch and the cut-off switch was replaced. Read more

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Thermostat (Temperature Control)
Genuine Frigidaire part
By: Frigidaire
Part Number: 5304509449

This temperature control thermostat regulates refrigerator temperature to keep food safely chilled. It replaces a faulty control to restore proper cycling and temperature stability for the fresh food compartment. What it does:

  • Senses cabinet temperature and opens/closes the compressor/coolant circuit to maintain set temperature
  • Can stop excessive cooling or prevent the compressor from running continuously when failing
  • Commonly used when the refrigerator is too warm, too cold, or runs nonstop
  • Works with mechanical temperature dials and capillary-sensor assemblies on compatible units
What's included: One thermostat Install notes:
  • Disconnect power to the appliance before servicing to avoid shock
  • Handle any attached capillary sensor tube gently; avoid kinks or sharp bends
  • Verify correct mounting and electrical connections; match terminals to the old thermostat

Do-It-Yourself Stories from Customers like You Microwave power lost   Amanda H. • Ofallon , MO • June 24, 2014

Purchased this thermostat for $13 and spent 6 minutes fixing the microwave. This was after I was quoted $162 to fix the microwave from a service technician. I explained that I wasn't paying $162 to fix a $200 microwave and they offered to dispose of the microwave for free--yeah, right! $13 and 6 minutes later, my microwave was fixed with this part from AppliancePartsPros.com. Thank you! Read more

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Microwave Thermostat
Genuine Lg part
By: Lg
Part Number: 6930W1A003Y

Microwave shuts off without beeping or won't power on? A failed thermostat often causes overheating shutdowns. This safety switch is moderately easy to replace.

Do-It-Yourself Stories from Customers like You Microwave shut off without usual beep at end of cycle no power to unit even though plugged in.   James B. • Rocky Hill , NJ • November 17, 2017

Replace Thermostat on top of cavity. The thermostat is attached via 2 bending sheet metal tabs. Ours blew because the two wires connected to thermostat shorted, connectors melted. The short was caused by buildup of grease under thermal wire cover, shorting both leads. The unit is used heavily. This is the first thermostat to go. I had to replace wire connectors that connected to thermostat as well since the connectors were melted as well. Helpful hint. The grease build up was probably caused by... Read more

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Microwave Thermostat
Genuine Samsung part
By: Samsung
Part Number: DE47-20030A

The Microwave Thermostat is a reliable component designed to regulate temperature in your microwave, ensuring optimal performance and safety. This genuine OEM part is specifically compatible with a wide range of Samsung microwave models, providing a secure and precise fit. By maintaining the correct temperature levels, the Microwave Thermostat helps prevent overheating and extends the lifespan of your appliance. Installing the THERM thermostat restores your microwaveGÇÖs functionality, allowing you to enjoy consistent heating results every time. Crafted from high-quality materials, this thermostat offers durability and dependable operation, giving you peace of mind with your repair. Whether your original thermostat is malfunctioning or needs replacement, the Microwave Thermostat is the perfect solution to maintain your microwaveGÇÖs efficiency and reliability. Trust in this genuine OEM part to keep your Samsung microwave running smoothly and effectively.

Do-It-Yourself Stories from Customers like You Bad overheat therm   Charles M. • Aiken , SC • February 28, 2015

Easy replacement after filing two flats on the you can't get the back off screws. Read more

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Microwave Temperature Sensor
Genuine Ge part
By: Ge
Part Number: WB27X10857

Microwave not heating on auto cook? This temperature sensor monitors internal temps for consistent heating. Restores accurate temperature control.

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Microwave Thermal Cutoff Thermostat
Genuine Ge part
By: Ge
Part Number: WB27X11208

Microwave won't power on after overheating? This thermal cutoff thermostat prevents damage by shutting down at unsafe temperatures. DIY repair.

Do-It-Yourself Stories from Customers like You After my daughter tried to make herself mac and cheese and I put out the burning lump of macaroni the microwave would not power on   Jacob A. • Midlothian , TX • February 04, 2019

Tried to turn the microwave on, checked the outlet for power, check the breaker to see if it was tripped, all was in order. Removed the over the range microwave and pull the covers, Tested continuity with a multimeter for each of the 4 normally closed thermostats, found 2 bad (open). The upper 110 and the lower right 70. Ordered the needed parts as well as both lamp sockets and bulbs as they where broken too. The parts where correct and where delivered on time. (Also, in your tools needed or... Read more

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Thermistor (Temperature Sensor)
Genuine Lg part
By: Lg
Part Number: 6322W2A001A

Thermistor is a temperature-sensing replacement that monitors refrigerator and freezer temperatures so the control board can regulate cooling. Replacing a faulty thermistor restores accurate temperature readings and helps stabilize cooling performance. What it does:

  • Senses interior/evaporator temperature and sends a signal to the control board for temperature regulation.
  • Helps prevent erratic cooling, long run-times, or inconsistent compartment temperatures when operating correctly.
  • Faulty thermistors can contribute to excessive frost, failed defrost cycles, or compressor cycling issues.
  • Use when the existing sensor fails to report correct temperatures or the part number matches.
What's included: One thermistor sensor. Install notes:
  • Always disconnect power to the appliance before servicing to avoid shock or damage.
  • The sensor is typically mounted on or near the evaporator or inside a cabinet wall; access may require removing panels or covers.
  • Handle the sensor and wiring harness gently; avoid pulling on wires or bending the sensor element.

Do-It-Yourself Stories from Customers like You Microwave would not microwave   Richard E. • Cape Coral , FL • January 05, 2020

Replaced the Humidity sensor, Thermistor and door switches. I replaced these thinking the problem was one of the items but didn't want to trial and error one part at a time. Plus the cost was reasonable so if these didn't help I wasn't out a lot of money. I sense the door switch was the problem. Replaced all items and the microwave works great. Thanks for the advice and the cost of the parts. Read more

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Thermostat (Mgt)
Genuine Ge part
By: Ge
Part Number: WB20X10003

Replacement thermostat that senses and controls the appliance heating system to restore accurate heating and stable temperature cycles, helping the appliance reach and maintain the set temperature. What it does:

  • Senses temperature and signals the heating element or valve to turn on/off to maintain set temperature.
  • Commonly linked to symptoms such as failure to reach set temperature, temperature fluctuating or cycling erratically, or continuous heating.
  • Works as the temperature-regulation component in the appliance's control pathway to stabilize performance.
  • Matches the OEM function for temperature control; use when thermostat diagnostics indicate a failed or inaccurate sensor.
What's included: One thermostat. Install notes:
  • Disconnect power to the appliance before attempting removal or installation to avoid shock or ignition hazards.
  • Handle the sensing element and terminals carefully to avoid damage; ensure secure electrical connections and proper routing of any capillary or sensor lead.
  • After installation, test the appliance through a full heat cycle to confirm correct operation.

Do-It-Yourself Stories from Customers like You Microwave would not heat   Michael M. • Butler , IL • September 26, 2025

Installed all of the parts that I ordered and it now works like it did when it was new... Read more

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Microwave Thermal Cutoff Cavity Tco
Genuine Ge part
By: Ge
Part Number: WB27X11094

Fix a microwave with no power. This thermal cutoff cavity (TCO) safety device prevents overheating by cutting power when temps exceed safe limits.

Do-It-Yourself Stories from Customers like You No power microwave   Dan G. • Middleburg Heights , OH • February 23, 2019

Replaced the oven TCO oven cavity simple repair got part in 3 days Read more

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Microwave High-Limit Thermostat
Genuine Whirlpool part
By: Whirlpool
Part Number: W11676348

If your microwave overheats or shuts off unexpectedly, the high-limit thermostat may have failed. This safety cutoff prevents damage from excess heat.

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Microwave Thermostat
Genuine Samsung part
By: Samsung
Part Number: DE47-20196C

Microwave won't power up or shuts off after seconds? Failed thermostats cause intermittent operation. Test for continuity—straightforward repair.

This part fixes the following symptoms
  • Exhaust fan not working
  • shuts off after a few seconds
See more...
Do-It-Yourself Stories from Customers like You Intermittently microwave wouldn't power up   Richard S. • Mcfarland , WI • August 22, 2015

Removed OTR microwave. Checked the thermostat switches while power was applied with a DVM. Noticed that when a certain set of wires was moved the slightest bit the microwave would power up. Traced the wires to the thermostat switch for the cavity. Noticed that where one (of two) Faston terminals was crimped to the thermostat switch was black. (should be copper colored). That is a sure sign of arcing from a loose connection. Since the specification for the switch was to trip at 248F degrees... Read more

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  • boxes images Over 2.1 Million Parts In Stock
  • time delivery images 2 Day Quick Delivery!
  • box-refresh images 365 Day Return Policy!
  • headphone imagesFree Tech Support!
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