How to Clean the Coils on Your LG Refrigerator

Why Your LG Refrigerator Coils Need Cleaning

The coils on your LG refrigerator pull heat out of the fridge and freezer to keep food cold. Over time, dust, pet hair, and debris stick to these coils and form a blanket that blocks airflow. When airflow is blocked, your compressor has to work harder to cool the same amount of space, which wastes energy and can shorten the life of your refrigerator.

Cleaning the coils two to four times a year keeps your refrigerator running efficiently and helps prevent repair calls. The job takes about 15 to 20 minutes and requires only a few basic tools you likely already have at home.

Key Takeaways

• Most LG refrigerators have coils located either on the back of the unit or underneath it, and you need to know which type yours is before you start.
• Always unplug your refrigerator or turn off the circuit breaker before cleaning to avoid electrical shock.
• A vacuum with a brush attachment and a coil cleaning brush are the safest tools for removing dust and debris without damaging the coils.
• Cleaning the coils every two to four months prevents your compressor from overworking and keeps your energy bills lower.

Locate Your Coils: Back or Bottom

LG refrigerators have coils in one of two places. Most newer models have condenser coils on the back of the unit, running horizontally across the lower portion. Some models, especially older or compact units, have coils underneath the refrigerator behind a front grille or kickplate.

Check your LG manual or look at the back and bottom of your refrigerator to see which type you have. If you cannot find the manual, you can search for your model number (usually on a sticker inside the fridge or on the back) on the LG website to download it. Knowing where your coils are located will determine how you access and clean them.

Unplug and Prepare Your Space

Before you touch any part of your refrigerator's electrical system, unplug the unit from the wall outlet or switch off the circuit breaker that powers it. This step is not optional—it protects you from electrical shock and prevents damage to the refrigerator's components while you work.

If your coils are on the back, pull the refrigerator away from the wall far enough that you can reach behind it comfortably. If your coils are underneath, you may need to remove the front kickplate or grille. Check your manual for the correct way to remove it—most slide out or are held by a few screws. Lay down newspaper or a towel to catch dust and debris as you work.

Vacuum the Coils Thoroughly

Use a vacuum with a brush attachment to remove loose dust and hair from the coils. Hold the brush gently against the coils and move it slowly along their length. Do not press hard or scrub—coils are delicate and can be damaged by rough handling. Vacuum both the front and back surfaces of the coils if you can reach them.

Pay special attention to areas where dust has built up thickly. You may need to vacuum the same spot several times to remove all the debris. If you do not have a brush attachment, a soft cloth or old toothbrush can work in a pinch, but a vacuum is faster and more thorough.

Use a Coil Cleaning Brush for Stubborn Buildup

After vacuuming, use a coil cleaning brush (also called a condenser coil brush) to gently loosen any remaining dust that is stuck between the coil fins. These brushes are long, thin, and flexible, designed to fit between the narrow spaces in coil fins without bending or breaking them. You can buy one at any hardware store or online for under $15.

Slide the brush gently between the coil fins in a back-and-forth motion. Work slowly and do not force it—if the brush does not slide easily, you may be pushing it at the wrong angle. After brushing, vacuum again to pick up the loosened dust. Repeat this cycle until no more dust comes loose when you brush.

Clean the Coil Area and Reassemble

Once the coils are clean, wipe down the surrounding area with a damp cloth to remove any remaining dust. If your coils are underneath, wipe the inside of the kickplate or grille before you put it back. Slide the kickplate back into place or screw it back on, making sure it is secure.

If you pulled your refrigerator away from the wall, push it back into place now. Plug the refrigerator back in or switch the circuit breaker back on. Wait a few minutes before opening the door—the compressor needs time to restart and begin cooling again. Your refrigerator should run more quietly and cool more efficiently now that the coils are clean.

How Often to Clean and When to Call for Help

Clean your coils every two to four months if you have pets or live in a dusty environment. If you have no pets and a clean home, cleaning twice a year is usually enough. Mark it on your calendar so you do not forget.

If your refrigerator is still not cooling well after you clean the coils, or if you hear unusual noises coming from the compressor, the problem may be something else. Contact LG customer service or a may have access to refrigerator repair technician. Do not attempt to repair electrical or mechanical parts yourself.

Frequently Asked Questions

Can I use a pressure washer or hose to clean the coils?

No. Water and electricity do not mix, and moisture can damage the compressor and electrical connections. Stick to dry methods like vacuuming and brushing. If you must use a damp cloth, wring it out thoroughly so it is barely moist, and keep it away from any electrical parts.

What if I cannot reach the coils on the back of my refrigerator?

Pull the refrigerator out further from the wall, or ask someone to help you hold it steady while you work. If the space is too tight, you may need to remove the back panel—check your manual for instructions. Some LG models allow you to access coils this way without moving the entire unit.

Will cleaning the coils reduce my electric bill?

Yes, but the savings depend on how dirty the coils were and how often you run the refrigerator. A refrigerator with clogged coils can use 10 to 25 percent more energy than one with clean coils. Regular cleaning helps maintain efficiency over time.

Is it safe to clean the coils myself, or should I hire someone?

Cleaning the coils yourself is safe as long as you unplug the refrigerator first and use only dry methods like vacuuming and brushing. You do not need special training or tools beyond a vacuum and a coil brush. If you are uncomfortable doing it, a refrigerator technician can clean them for you, though it will cost more than doing it yourself.

What should I do if the coils are damaged or bent?

Minor bends in coil fins can sometimes be straightened gently with a coil fin comb, which is a thin metal tool designed for this purpose. However, if the coils are cracked, leaking, or severely damaged, they need to be replaced by a professional. Do not attempt to repair or replace coils yourself.