GE WR51X10055 Refrigerator Defrost Heater and Bracket Assembly This part fixes the following symptoms: Fridge section too warm, freezer section too warm, freezer not defrosting The defrost heater keeps the cooling coils from frosting over. The heater will get hot and melt any ice or frost build up around the coils This part works with the following brands: GE, Hotpoint and Kenmore