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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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Brent for Model Number Kenmore HE3t Dryer

Should the thermistor show continuity? I have tested other electrical components in the dryer and they all have continuity. My thermistor does not show any continuity. I ordered two new different Thermistors off of Amazon (ERP and Whirlpool) and none of them continuity and show 0 OHMs of resistance. I read some reviews where people received bad thermistors. Can anyone confirm if I should be showing some type of resistance? My symptons: My dryer is no longer heating at all and I keep getting Check Lint light before I start a load. It stopped heating all of a sudden. One day it was heating the next day it wasn't.

Answer

Hello Brent, The inlet thermistor and the outlet thermistor will normally have different resistance readings. It is impossible to tell what the thermistor reading will be without the model number from the units' I.D. tag. Since this is a Kenmore, we may still not be able to pull a wiring diagram or anything since sears likes to hide their information. I can tell you that when you set the meter to read resistance, if it is not an auto-ranging model, you will need to chose a high scale since it is common for the thermistor to have from 50K to 120K (50,000 to 120,000) ohms of resistance. If you need further assistance, please post the model number so we can give you sound assistance.

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Answered by AppliancePartsPros.com   |   Thursday, February 5, 2015

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