Defrost Control Board 242011001 Frigidaire Refrigerator

A defrost control board, also known as a defrost timer or defrost control module, is a critical component in a refrigerator’s defrost system. Its primary function is to regulate the automatic defrost cycle of the refrigerator to prevent the buildup of ice on the evaporator coils.

The defrost control board monitors the operating time of the refrigerator’s cooling system and initiates the defrost cycle at regular intervals, typically every 6 to 12 hours of compressor run time. This ensures that ice does not accumulate excessively on the evaporator coils, which could reduce the efficiency of the refrigerator’s cooling process over time.

Once the defrost cycle is complete and the ice has melted from the evaporator coils, the defrost control board terminates the defrost cycle. It then allows the refrigerator to return to its normal cooling cycle, ensuring that food remains at the desired temperature.