The condenser coils of your refrigerator are typically located in the back of the appliance. These coils aid in the cooling of the heated refrigerants. When they become clogged by dirt or dust build up it can put more work on the compressor. The compressor’s job is to heat the refrigerants. When the condenser coils are plugged, the dirt acts as an insulator and keeps the refrigerants from being able to properly cool. Cleaning these coils with a vacuum or duster twice a year can help ensure a longer life of your fridge.