WPW10436849 - Whirlpool Refrigerator Defrost Heater Assembly

This Whirlpool Refrigerator Defrost Heater Assembly (WPW10436849) is a genuine part designed specifically for Whirlpool refrigerators. It ensures your refrigerator remains clear of ice build-up on the evaporator coils. Commonly known as a "defrost heater," it plays a pivotal role in the refrigerator's defrost cycle. During this cycle, the heating element within the assembly is activated by a timer or control board. It generates heat, which is then transferred to the evaporator coils, effectively melting any accumulated ice or frost. This melted ice then flows down into a drain pan, where it is naturally evaporated away or drained, maintaining the efficiency of your appliance and preventing potential blockages that could impair its cooling performance.

Symptoms indicating that this defrost heater assembly may need replacement include noticeable frost build-up on the evaporator coils or a decrease in the cooling efficiency of your refrigerator. If you encounter these issues, it might be time to replace this crucial component. Before purchasing, verify your refrigerator's model number to ensure compatibility with this part.