Whirlpool W11573590 Defrost Sensor (Evaporator Thermistor) OEM Part

Product Details

Genuine Whirlpool part. Whirlpool brands include Whirlpool, Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, Kenmore, and others.
Whirlpool also makes various appliance models for Sears / Kenmore.

Cross Reference Information

Part Number W11573590 replaces AP7176707, W10772858.

Description

This defrost sensor monitors evaporator temperature so the fridge's defrost system runs when needed, helping prevent excessive frost and maintain efficient cooling. It replaces a faulty thermistor to restore proper defrost cycles and temperature sensing. What it does:

• Senses evaporator coil temperature and sends readings to the control board or defrost timer.
• Triggers defrost cycles when the evaporator reaches temperatures that indicate ice buildup.
• Commonly used when frost accumulates on the evaporator or the freezer runs too cold/too warm between cycles.
• Works with compatible refrigerator control systems that rely on a thermistor-style defrost sensor.

What's included:

• One defrost sensor (thermistor) assembly.

Install notes:

• Disconnect power to the appliance before servicing to avoid electrical shock.
• Handle the sensor and wiring gently; avoid pulling on wires or bending the sensor probe sharply.
• Follow OEM routing and connector orientation; secure the sensor to the evaporator per the original mounting.