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This defrost thermostat helps control the refrigerator/freezer defrost cycle by sensing evaporator temperature and allowing the heater to run when frost removal is needed. Replaces a failed thermostat to restore normal defrost operation. What it does:
Condenser was running, evaporator fan was not. My frig has the obsolete adaptive defrost timer card in it. Tried the "trigger door switch 4 times quickly" to force the frig into defrost mode - would not work. If the defrost thermostat fails in the proper state (open, I think), the frig can't enter defrost mode and the condensation on the evaporator coils will freeze solid. The melting ice in the dispenser storage will eventually leak out of the door dispenser and make a puddle at the... Read more
Refrigerator running constantly or freezing food? This defrost thermostat regulates temperature cycles to restore consistent cooling and prevent frost buildup.