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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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Answer

Hello Tom, you will need a multimeter for this test, remove the rear control panel cover and access the main control board, locate the P9-1 blue wire terminal and check it to P8-3 white for 120v after starting a cycle. If no 120v then replace the main control board for a faulty motor run relay, if there is 120v then check the thermal fuse (blue wires) located on the blower housing. If no continuity on the fuse then it will need to be replaced and also check the heater element if it has grounded to the chassis causing the overheat condition that tripped the fuse,

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Answered by AppliancePartsPros.com   |   Monday, August 12, 2019

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