Whirlpool Defrost Thermostat For Refrigerator is Compatible with Admiral, Crosley, Jenn Air, Magic Chef, Maytag, Norge, Whirlpool, Admiral, Crosley, Jenn Air, Magic Chef, Maytag, Norge, Whirlpool brands. Replacement for 61002992, 61004831. This refrigerator defrost thermostat is responsible for preventing the evaporator from becoming too warm during the defrost cycle.