Dirty condenser coils make a refrigerator work harder to stay cold. Cleaning them takes about 30 minutes and needs only a vacuum and a coil brush.
This guide covers the steps for most LG refrigerators. Your model may place the coils in a different spot, so check your owner’s manual first.
Why clean the condenser coils
The condenser coils release the heat that the refrigerator removes from its food compartments. Dust and pet hair trap that heat, so the compressor runs longer, uses more electricity, and can overheat.
Clean the coils at least once a year. Clean them every six months if you have pets that shed or your home is dusty.
Gather your supplies
- A vacuum with a brush attachment
- A coil brush, or a long, narrow brush made for condenser coils
- A towel or cloth
- A flashlight
Clean the coils
- Unplug the refrigerator from the wall outlet. Wait a few minutes before you touch the coils.
- Find the coils. On most LG models they sit behind the bottom front grille (also called the toe grille) or on the back of the refrigerator.
- Remove the grille or access panel. Most grilles pull off or unclip. Set the grille aside where it will not get bent.
- Vacuum the coils with the brush attachment to remove loose dust and debris. Move the brush over both sides of the coils.
- Brush between the coils with the coil brush. Work from the top of the coils down, and keep the brush parallel to the fins so you do not bend them.
- Vacuum again to remove the dirt the brush loosened.
- Wipe down the area around the coils. Dust near the coils gets pulled back in when the fridge runs.
- Put the grille or access panel back in place, and push it until it clicks or seats fully.
- Plug the refrigerator back in, and let it run for about 24 hours before you judge its temperature.
Avoid these common mistakes
- Do not bend the metal fins. Bent fins block airflow. A fin comb can straighten them.
- Do not spray water or cleaning liquid on the coils or the electrical parts. Use dry methods and a brush.
- Do not use a sharp tool to clear the coils, and do not pry against them.
- Do not skip the grille. Clean the coils behind it, not only the visible area.
Signs your coils need cleaning
Clean the coils sooner if you notice any of these signs:
- Higher electricity bills
- Food that is warmer than usual, or a refrigerator that struggles to stay cold
- A compressor that runs almost constantly
- A warm coil or a warm area around the back or the bottom of the refrigerator
If cleaning the coils does not solve the problem, see refrigerator not cooling: 12 causes for other likely faults.
Frequently asked questions
Where is the condenser on an LG refrigerator?
On most LG models the condenser coils sit behind the bottom front grille or on the back of the refrigerator. Your owner’s manual shows the exact location for your model.
How often should I clean LG refrigerator coils?
Clean them at least once a year. Clean them every six months if you have pets that shed or your home is dusty.
Can I use compressed air to clean the coils?
Yes, in short bursts from a safe distance. Vacuum first, because compressed air can push loose dust deeper into the coils.
Do I need to unplug the refrigerator before cleaning the coils?
Yes. Unplug the refrigerator before you remove the grille or touch the coils.
Book refrigerator repair in San Diego
If the refrigerator still runs warm after you clean the coils, Bonita Appliance Repair can diagnose the fault. A technician explains the repair and its price before any work begins.
