Frigidaire 5303918634 Defrost Thermostat Kit

Product Description

The FRIGIDAIRE 5303918634 is a replacement defrost thermostat kit designed for use in Frigidaire refrigerators. The thermostat monitors freezer compartment temperature and controls the automatic defrost cycle. When frost accumulation reaches the activation threshold, the thermostat signals the defrost heater to run. Once the temperature rises above the cutoff point, the thermostat shuts the heater off, preventing damage to frozen goods and refrigerator components. This kit is installed by appliance technicians and experienced service professionals performing routine defrost system repairs.

This kit fits into the automatic defrost system found in residential Frigidaire refrigerators. It is a direct OEM-style replacement for units that exhibit excessive frost buildup in the freezer compartment, reduced cooling performance, or a defrost heater that runs continuously or not at all. Technicians typically encounter this part during diagnostic calls where the defrost cycle has failed and ice has accumulated on the evaporator coil.

Key Features

• Controls the automatic defrost cycle by monitoring freezer compartment temperature
• Activates the defrost heater when frost buildup reaches the trigger threshold
• Cuts off the defrost heater once the set temperature limit is reached, protecting components
• OEM-style replacement restores proper defrost function without modification
• Helps prevent evaporator coil icing that degrades cooling efficiency

Compatibility

Designed as an OEM-style replacement defrost thermostat kit for Frigidaire residential refrigerators equipped with an automatic defrost system.

Installation Notes

Installation should be performed by a qualified appliance technician. Disconnect power to the refrigerator at the outlet or breaker before beginning any disassembly. The evaporator panel in the freezer compartment will need to be removed to access the thermostat. Follow standard electrical safety practices when disconnecting and reconnecting wiring harness connections.