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Customer Questions and Answers for Thermostat (Mechanical) by Whirlpool

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Manufacturer Part
4.89 (64)
By: Whirlpool
Part Number: OEM18069096
Manufacturer Part Number: WPW10567140

This mechanical thermostat monitors temperature and opens or closes the circuit at a fixed set point to control heat and prevent overheating. Replacing a failed thermostat restores safe operation and consistent performance. What it does:

  • Senses surface or component temperature and switches the circuit at a calibrated threshold
  • Helps protect heaters, motors, and controls from thermal damage due to over-temperature
  • Common symptoms of failure: no heat, shuts off mid-cycle, won't start until cooled, or intermittent operation
  • Restores proper temperature control after a thermostat sticks open/closed or drifts out of spec
What's included:
  • 1 thermostat
Install notes:
  • Disconnect power at the breaker (and shut off gas, if applicable) before servicing
  • Note wire positions and transfer leads one-for-one to the new thermostat
  • Mount flush against the sensing surface with original screws/clips; reinstall any insulation or thermal interface material as found
  • Correct the root cause (blocked vents, failed fan, restricted airflow, or buildup) before returning the appliance to service

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$73.25
Compare At:
$90.32
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$17.07

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Questions & Answers

For Whirlpool Thermostat (Mechanical) (Part Number: OEM18069096)

1 Answer

Hello Roger, This sounds like a defrost issue to me. This model will either have a bad defrost thermostat, WP4387490, or a bad defrost timer WP2183400. It isn't impossible for the defrost heater to fail, but this one is a calrod type and they fail much less often than the glass tube type. Let me explain why because of your assumption about thinking it was the thermostat. If the thermostat were the issue, the freezer compartment would also be warm. As it stands, since the fresh food gets its' cold from shared air from the freezer compartment, it has to be an air flow issue between the two compartments. This points at the defrost circuit because it's the defrost circuits' job to keep the frost cleared from the cold coils so air can pass through them in the process of circulating the air from one compartment to the other, (freezer to fresh food compartment).

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1 Answer

Hi Pat. Your refergerator temperature controls ,part # is WPW10567140, has a temperature sensor capillary. You should prove well by replacing this part. Thank you.

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