How to Repair the Coil of a Refrigerator & Deep Freezer

Unplug the fridge to prevent the risk of electrical discharge during the repair process. This also allows the coils to thaw if they have frost buildup on them.

Vacuum the condenser coils in the back of the fridge with an attachment to remove dust and debris that has built up over time. Wipe down the coils afterward with a damp cloth or a coil brush to further remove dust. When dust particles coat the coils, the buildup prevents them from functioning properly. If the coils are underneath your fridge, take the grill off at the bottom of the fridge and vacuum the coils and the fan, which is also underneath.

Remove the panel in the freezer that covers the evaporator coil by unscrewing it with a screwdriver. The panel is often at the bottom of the freezer. Remove any clamps holding the evaporator coil in place. Clean the evaporator coil in the same fashion as you did the condenser coils.

Inspect the coils in the fridge to look for corrosion, breaks or leaks. Wipe down any damaged areas with fine sandpaper to prepare it for repair. Wipe away loose sand with a rag upon completion.

Cover the damaged portion of the coil with an epoxy putty. Connect a vacuum pump to the service valve near the fridge compressor. Turn the pump on to create a vacuum in the coil. This sucks the repair deeper into the coil so it forms a stronger bond.

Place the evaporator coil back in the freezer and screw the panel back in place. Plug the fridge back in and see how it works. If the coils still create problems, request a professional repair.