How to replace a defrost heater in a side-by-side refrigerator

This DIY repair guide gives step-by-step instructions for replacing the defrost heater in a side-by-side refrigerator. During the defrost cycle, the defrost heater melts frost from the evaporator fins. If the defrost heater fails, frost builds up in the freezer, and the refrigerator works less efficiently. If the defrost heater is visibly damaged, replace it with the manufacturer-approved side-by-side refrigerator part that fits your model. If the defrost heater isn’t visibly damaged, a local refrigerator repair expert should diagnose the cause of frost buildup before you install a replacement, because a failed defrost heater is just one of several possible reasons.

This procedure works for Kenmore, Whirlpool, KitchenAid, GE, Maytag, Amana, Samsung, LG, Frigidaire, Electrolux, Bosch and Haier side-by-side refrigerators.