Table of Contents (click to expand)Refrigerator Working PrincipleParts Of A FridgeRefrigerator Function: How Does A Refrigerator Work? A refrigerator works by using a coolant to remove heat from the food items inside and transfer it to the surroundings. The coolant is first compressed by the compressor, which heats it up. The hot coolant is then passed through the condenser coils at the back of the fridge, where the heat is dissipated. The coolant then passes through the expansion valve, where it expands and becomes a cold gas. This cold gas is passed through the expansion coils inside the fridge, where … Continue reading How Does A Refrigerator Work?