The Defrost Timer is an OEM part for GE refrigerators. This part manages the defrost cycle of the fridge and freezer compartments, ensuring that the evaporator coils do not build up excessive frost.  This cycling is crucial for maintaining optimal temperatures for food preservation and energy efficiency. Over time, the defrost timer can malfunction due to wear, electrical issues, or a buildup of dust and debris, leading to poor performance or failure. Symptoms of a bad Defrost Timer include: Frost buildup in the freezer compartment The refrigerator or freezer is not maintaining the set temperature The fridge or freezer sections are too warm The defrost cycle does not activate, leading to reduced cooling efficiency This OEM GE part can also be used on Hotpoint, RCA, and Kenmore/Sears appliances. This part fixes the following symptomsFreezer not defrostingLeakingFreezer section too warmFridge too warmWR9X502 (AP2061708) replaces WR09X10049, 310900, AH310869, EA310869, PS310869, WR09X0278, WR09X0283, WR09X0313, WR09X0329, WR09X0334, WR09X0339, WR09X0342, WR09X0350, WR09X0356, WR09X0363, WR09X0364, WR09X0366, WR09X0375, WR09X0387, WR09X0408, WR09X0409, WR09X0418, WR09X0419, WR09X0428, WR09X0432, WR09X0438, WR09X0466, WR09X0468, WR09X0470, WR09X0478, WR09X0479, WR09X0481, WR09X0484, WR09X0486, WR09X0487, WR09X0490, WR09X0495, WR09X0502, WR09X0503, WR09X0504, WR09X0526, WR09X0528, WR09X0576, WR09X0594, WR09X5161, WR09X5162, WR09X5163, WR09X5164, WR09X5192, WR09X5202, WR09X5204, WR09X5211, WR09X5225, WR9X10049.