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LG Refrigerator Makes Loud Noise

LG has always operated under the motto that life is good. When your LG refrigerator is making a loud noise, however, it can be frustrating. How can you fix it?

An LG refrigerator can make loud noises due to several reasons. Disruptions in the Smart Diagnostic System can result in humming, rattling, or disrupted airflow sounds. Misalignment of the Fresh Air Filter and its housing mechanism can cause a popping or crackling noise. Linear Compressor failure can also lead to loud noises during operation.

white refrigerator in the kitchen

Smart Diagnostic System

You can think of the Smart Diagnostic System within your LG refrigerator as being the brain that operates everything. It communicates with sensors throughout the refrigerator to ensure that everything is operating properly.

If this system experiences any type of hiccup or if it has become disrupted somehow, it may be reacting to incorrect sensor readings. As a result, the noise patterns you are accustomed to in your LG refrigerator will be disrupted as well.

Some of these noises can be loud, as they may cause humming, rattling, or a disrupted airflow sound. It all stems back to the diagnostic system, however, which must be repaired.

Check the manufacturer’s instructions for your specific model. LG refrigerators are similar to each other, but there are enough differences that you should look for instructions.

You may be able to recalibrate the system according to the guidelines offered by the manufacturer. Otherwise, you can reset the Smart Diagnostic System back to factory specifications.

Fresh Air Filter Housing

The filters are the unsung heroes in our refrigerators. In an LG refrigerator, this would include the Fresh Air Filter, which allows fresh air to enter the refrigerator to keep things from getting stale.

This air filter can be cleaned on occasion but if it isn’t seated in the housing properly, it could lead to a popping or crackling noise. This noise can be substantial if the filter and housing mechanism are not aligned properly.

The way to fix your LG refrigerator when you are having a problem with the filter housing is to replace the filter. You may not even have to replace the filter, it may just have to be reset so it is seated in the housing properly.

It won’t take you long to know if the air filter has been fixed properly. When the refrigerator starts running, it should operate smoothly when the filter is in place.

3. Linear Compressor Failure

A common problem with LG refrigerators appears to be an issue with the linear compressor. When the compressor is not operating properly, it can lead to loud noises during the operation.

In some cases, the linear compressor may not even work because of a faulty seal. The seal can be replaced in this event, but a faulty seal can also lead to loud noises.

You can test the linear compressor to see if the compressor itself is at fault or if it is a smaller component. You can’t repair the compressor but you can replace components or replace the compressor with a new one.

Common Reasons Why a LG Refrigerator Makes Noise

white refrigerator in the kitchen

We count on our refrigerators to run without any problems. What can you do if your refrigerator is making a loud noise?

A loud buzzing or clicking sound can be the result of a failing compressor. Remove the compressor from the refrigerator and test it using a multimeter. The compressor can sometimes be fixed but in most cases, it must be replaced.

Here are five common reasons why your refrigerator may be making a loud noise and how to fix them.

Dirty Condenser Coils

When condenser coils become clogged with dust and debris, it makes the compressor work harder. Since the compressor is working harder, it will make noise.

Solution: Clean the coils with a vacuum cleaner or soft brush. Make this a regular part of your household cleaning to ensure that problems are kept to a minimum.

Copyright protected content owner: and was initially posted on October 5, 2023.

Faulty Condenser/Evaporator Fan Motor

Both the evaporator and the condenser fans could wear out over time. In either case, the typical sign of such a faulty fan motor is a loud noise. Some of these noises can include clicking, humming, grinding, rattling, and buzzing.

Solution: Both the evaporator and condenser fan motors can be replaced. Prior to replacing them, you can remove them from the refrigerator and test them with a multimeter.

If the motors don’t check for continuity, they are faulty and must be replaced.


An icemaker can generate noise due to it being jammed and frozen. As the auger tries to turn, it can create a loud clicking or banging sound.

Solution: Remove the icemaker components from the refrigerator and visually inspect them. In many cases, you will see the buildup of ice when you first start this process. Faulty or damaged parts should be replaced.

Copyright article owner is for this article. This post was first published on October 5, 2023.

Loose Parts

There are many moving parts in a refrigerator and some that don’t move. If they are not attached properly and are loose or worn, they could begin making a vibrating and rattling sound.

Some common parts that experience this type of rattling include the ice maker, tubing, and loose pipes.

Solution: Carefully inspect the interior of the refrigerator for any loose or rattling parts. You can do so visually, by feeling for loose parts, or by trying to pinpoint the sound they are making.

After you fasten the loose parts in place, the smooth and quiet operation of the refrigerator should return.

Out Of Level

The refrigerator should be level and if it isn’t, it could produce a buzzing or rattling noise. This is due to vibrations that can occur when the unit is not leveled properly.

Solution: The solution to an unlevel refrigerator is straightforward. Most refrigerators are designed with leveling feet that can be adjusted to bring the refrigerator to the proper level.

Let us now consider some of the brand-specific reasons why refrigerators could be making loud noises.

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ReadyToDIY is the owner of this article. This post was published on October 5, 2023.

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