Customer Questions and Answers for Defrost Heater And Thermostat Assembly (Evaporator), 1 by Whirlpool

This assembly contains the evaporator defrost heater and temperature thermostat that remove frost from the evaporator coil to help restore normal cooling. Replaces failed defrost components to help the fridge complete defrost cycles and reduce ice buildup. What it does:

• Heats the evaporator during defrost cycles so accumulated frost melts away
• Uses a temperature thermostat to open/close the heater circuit at the correct temperature
• Commonly replaces failed defrost parts when frost builds on the evaporator or the refrigerator runs continuously
• Helps restore normal airflow and cooling when defrost cycle has stopped functioning

• One defrost heater and thermostat assembly

• Disconnect power to the appliance before starting any repair
• Handle the evaporator and fins carefully to avoid damage; keep electrical connections secure and dry
• Follow the manufacturer instructions for routing and mounting the assembly