Customer Questions and Answers for Defrost Heater by Whirlpool

The Heater is an OEM part for Whirlpool refrigerators. This part prevents frost buildup by heating the evaporator coils during the defrost cycle. This part ensures that air flows freely over the coils, improving the efficiency of the cooling system and maintaining the refrigerator at the optimal temperature. 

Causes of a bad heater can include electrical failures, such as a blown fuse or a faulty wiring connection, or physical damage to the heater element itself.  

Symptoms of a bad Heater include:

• Frost buildup on the evaporator coils
• The refrigerator and freezer not maintaining the desired temperatures
• Increased energy consumption as the refrigerator works harder to cool
• Unusual noises from the refrigerator as the fan hits frost buildup

This OEM Whirlpool part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper and some Kenmore models.