This video shows the proper way to test your defrost thermostat. There is a lot of misinformation on testing the defrost thermostat. Most defrost thermosta Emerson is the global technology, software and engineering powerhouse driving innovation that makes the world healthier, safer, smarter and more sustainable. Jun 23, 2019. Thermistors are essential components of refrigerators, freezers, furnaces, AC units, and other systems that require precise temperature management. In freezing and refrigeration, a thermistor is a crucial component that is responsible for allowing systems to stay within a short temperature range. Thermistors can gauge temperatures The refrigerator evaporator is one part of the refrigeration cycle that makes the inside of your refrigerator cold. After the refrigerant gas has gone through the condenser coils located at the back of the refrigerator, it starts to cool down and turn into a liquid. It’s at this liquid stage that the refrigerant reaches the expansion valve. Confirming your refrigerator has a defrost system malfunction. The Defrost problem can be confirmed by removing food from the freezer. Remove the freezer interior panels that cover the cooling coils. A defrost problem is confirmed if the cooling coils are covered with ice. If there is no ice then the defrost system is working normally and you The ice acts as an insulator, making the refrigerator work twice as hard to try and stay cool. Defrosting solves the problem of ice build-up on the evaporator by melting the frost. When the atmosphere surrounding the frost-covered evaporated rises above 32 degrees Fahrenheit, the frost will begin to melt. Some of the early model refrigerators This video from Sears PartsDirect shows how to replace a defrost bi-metal thermostat in a top-freezer refrigerator. The defrost sensors shut off the defrost Step 2: Condensation. The hot refrigerant passes through the condenser, where the vapor flows through a series of tubes. A fan blows air inside the tubes, cooling the vapor and turning it into a liquid. When the coolant is in a high-pressure liquid state, it leaves the condenser. .

function of thermostat in refrigerator