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Customer Questions and Answers for Thermistor by Whirlpool

4.89 (64)
By: Whirlpool
Part Number: OEM18040551
Manufacturer Part Number: WP8577274

The Thermistor is an OEM part for Whirlpool brand dryers. It is a temperature-sensing resistor that monitors air temperature changes during the drying cycle. The thermistor provides feedback to the control board on heating element performance and internal air condition. 

Symptoms of a failed thermistor include:

  • Inaccurate temperature readings and selections  
  • Improper or incomplete drying
  • Safety issues from overheating due to lack of feedback
  • Error codes displayed on the control panel

Causes can be related to normal wear and environmental exposure over time. Failure prevents the dryer from achieving optimal drying conditions.

This OEM Whirlpool part can also be used on Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore/Sears brand appliances.

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Questions & Answers

For Whirlpool Thermistor (Part Number: OEM18040551)

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Angel for Model Number GEX9868JQ1

Electric dryer turns on but doesnt not heat. First thing I did was clean out the lint and the duct. Its all cleaned, not much there because I cleaned it out about 4 months ago too. Check the thermostat- its good! checked the Thermal cut off- its good. Check the Heat Element- it has a crack on the sheet metal plate but it still has continuity. I did buy a new one just in case, installed it- no difference. Thermal fuse is good. The Thermistor/thermister read at 12 k ohms at "room themp" I actually check the temp of the thermistor's terminals and they are around 62degree. I check continuity at the electric control panel- all good. I checked the wall outlet- got a reading of 240, tested the plug at the dryer, also tested 240+-. Im lost, what now?

Answer

Angel, You will want to test the heater to make sure that it is getting 240 vac. If you check across the terminals it should read 240 when the unit is on and calling for heat. If it does not then check for 120 vac on each side to chassis ground. Whichever side that there is not 120 vac on is the side you will need to trace back to origination. It could be a bad centrifugal switch on the motor or could be a bad control board if all other components test ok. You will also want to double check all wiring for breaks or damage.

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Answered by AppliancePartsPros.com   |   Wednesday, March 6, 2013

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