5303918638 - Electrolux Refrigerator Defrost Thermostat

This Electrolux Refrigerator Defrost Thermostat (5303918638) is a genuine part compatible with Electrolux and Frigidaire refrigerators. It is also known as a "defrost bi-metal thermostat" or simply "thermostat, assembly, safety." The thermostat plays a pivotal role in the refrigerator's defrost cycle by monitoring the temperature of the evaporator coil. When frost builds up on the coil, inhibiting its cooling efficiency, the thermostat senses when the temperature reaches about 32 degrees Fahrenheit. It then triggers the defrost heater to melt away the frost, ensuring your appliance cools effectively. Once the coil's temperature rises, indicating that the defrost cycle is complete, the thermostat shuts off the heater to conserve energy and maintain optimal performance. Symptoms indicating a need for replacement include excessive frost buildup and an inability of the refrigerator to maintain the correct temperature. We recommend verifying your device's model number for compatibility before purchasing this essential refrigerator maintenance part.