Cleaning the refrigerator coils is a vital task that many of us do not want to undertake. If you have ever wondered how to clean your refrigerator condenser coils to ensure functional efficiency, this guide will help you out. It is a step-by-step instruction manual on how to properly clean condenser coils by yourself and prevent buildup that can affect performance. It then releases the heat to the air from the condenser coils on the back of the refrigerator. When to Clean Refrigerator Condenser CoilsIf you want to keep your refrigerator running smoothly, you need to keep the coils clean.