The Frigidaire 5303918214 Defrost Thermostat for Refrigerator helps regulate the defrost cycle to support consistent cooling performance. This replacement defrost thermostat is designed to monitor the temperature of the evaporator coils and control the operation of the defrost heater during automatic defrost cycles. It works by closing or opening the electrical circuit based on the co... https://www.partsmelange.ca/frigidaire-5303918214-defrost-thermostat-for-refrigerator