This DIY repair guide shows how to replace the defrost control assembly in some LG and Kenmore refrigerators. The defrost control assembly, located next to the evaporator in the back of the freezer, monitors the evaporator's temperature to protect it from overheating. It includes a defrost temperature sensor, a fuse and a wire harness. If the defrost temperature sensor isn't working correctly, the evaporator overheats during the defrost cycle, which in turn blows the fuse. Less commonly, a shorted defrost heater or faulty wiring could blow the fuse. In both cases, the freezer won't defrost and the electronic display panel shows an error code. Replace the defrost assembly with a manufacturer-approved replacement part if the defrost sensor fails or the fuse blows.
This repair procedure works for LG and Kenmore 795-series French door refrigerators. The procedure for accessing defrost components in the bottom freezer compartment is basically the same for many Whirlpool, Maytag, Amana, Samsung, Frigidaire, Electrolux and GE refrigerators.
