Customer Questions and Answers for Defrost Heater by Whirlpool

The Defrost Heater is an OEM replacement part for Whirlpool French door refrigerators. It is an electric heating element strategically placed within the refrigerator compartment and freezer liners. This component aids in preventing excessive moisture buildup from condensation formed during normal operation. 

Causes for heater failure include standard component degradation from prolonged use. Exposure to moisture accumulating over time can damage wiring insulation or short-circuit coil filaments as well.

Symptoms of an inadequate defrost heater involve:

• Frost buildup interfering with door seals and interior shelving
• Promotion of mold/mildew growth from sustained dampness
• Food spoilage risks due to the inability to regulate proper humidity 

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