Customer Questions and Answers for Thermistor (Temperature Control) by Whirlpool

This temperature-control thermistor (temperature sensor) feeds accurate temperature data to the control so your appliance can cycle components correctly and, where applicable, manage defrost. Replacing a faulty sensor restores stable operation and consistent performance. What it does:

• Senses temperature and varies resistance to report conditions to the control
• Helps the control regulate system cycling for proper operation
• Supports defrost logic where applicable to prevent coil icing
• Common failure signs: erratic temperature control, short/long cycling, icing on the evaporator, or unexpected shutoffs

• 1 thermistor

• Disconnect power before servicing
• Note the original sensor location and wire routing; install the new sensor in the same position
• Transfer any mounting clip or sleeve from the old sensor if needed
• Fully seat connectors and route wiring away from sharp, hot, or moving parts