The Frigidaire 5303918214 Refrigerator is an appliance model, and it may have a defrost thermostat kit that regulates the temperature and defrosting of the refrigerator. The defrost thermostat kit may contain sensors and components related to defrost control, and it may require replacement or replacement of specific components if it malfunctions. Ensure that the defrost thermostat kit... https://www.hnkparts.com/5303918214-frigidaire-defrost-thermostat