Highlights A 2-wire refrigerator defrost thermostat is a type of defrost thermostat that has two wires for connecting to the refrigerator’s defrost circuit. The two wires of the defrost thermostat are used to connect to the defrost heater circuit and the control circuit of the refrigerator. The main application of a refrigerator defrost thermostat is to regulate the defrost cycle in a refrigerator’s cooling system. refrigerator defrost thermostat bio metal 2 wire
