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Frost Buildup - Refrigerator

Troubleshooting Refrigerators Last Updated 01/17/2017
Frost Build - Refrigerator

Frost buildup inside the refrigerator occurs when warm humid air from outside of the refrigerator combines with the cold dry air on the inside.

Frost buildup inside the freezer or refrigerator compartments are caused when

  • the gasket is not sealed properly or
  • the doors being left open for too long.

Before we proceed...

Do you see any error code on the screen?

Check our error codes article to select your error and fix your refrigerator

Visit our Error Codes Article


Use our quick diagnose and troubleshooting to stop frost buildup

Troubleshoot your Freezer

Damages or Tears

Do you notice any damages on the gaskets of your refrigerator? Request a service repair

Request a Service Repair

Where is the Frost Located?

Select the area of your refrigerator or freezer mostly affected by Frost.

Frost Appearing Near the Door Opening (towards the Front Compartment)

Most times, slight openings around the refrigerator door can allow enough moisture to enter into your refrigerator which causes frost buildup. Foods, drinks, containers and other items in your refrigerator can obstruct the door from closing properly.

Steps to follow:

Frost Appearing at the Back Wall of the Freezer

If you discover frost appearing at the back wall of your freezer, this may be as a result of some simple reasons:

  1. How full is your Refrigerator?

  2. Temperature setting affects frost buildup as well. If the freezer is relatively empty, there is more air circulating, and a low temperature causes more of the excess air to freeze. On the other hand, a very full freezer can block the air vents, preventing proper air circulation that also causes frost buildup.

  3. What is your current Temperature Setting?

  4. If your temperature is presently below 0oF, you may need to increase your temperature for 24 hours. A lot of times, due to the low temperature of your refrigerator/freezer, it may not be melting off the previous frost buildup that has accumulated in your refrigerator when the door was not properly closed.

Your Entire Freezer is covered with Frost

Check your freezer door to ensure that it closes firmly.

Steps to follow:

  1. Make sure that no items are blocking the door from shutting completely.
  2. Check the door gasket for any tears and rips.
  3. Make sure the gasket is properly connected to the liner.
  4. Note: If the gasket is ripped, torn, or twisted, you will need to request a repair service.

Plain Sheet of Ice formation on the bottom of the Freezer

If you notice a plain sheet of ice formation on the bottom of your freezer, check your freezer door to ensure that it closes firmly.

If a sheet of ice has formed at the bottom of the freezer, this is likely caused by a blocked drain line.

To prevent any damage to the unit or to your, it is strongly recommended for a trained technician to perform the repair because it will require disassembling the refrigerator.

Frost Forming on the gaskets to the side of the indoor Ice maker

Check your freezer door to ensure that it closes firmly.

If the problem persist, that means your refrigerator may not be properly leveled which gives access to external moisture through the opened space between the alignments.

There is a quick method you can use to discover if your refrigerator is properly aligned before requesting for a professional technician.

Steps to Follow:

  1. Open the refrigerator doors.
  2. Get a small quantity of vegetable oil.
  3. Gently rub some vegetable oil on the rubber gaskets of the ice maker.
  4. Open the door gently and check the inside wall of the refrigerator.
  5. You should be able to see the circular oil traces on the inside wall where your rubber gasket made contact.
  6. NOTE: If the oil rings from the gasket line up properly to the vents in the inside wall, you will need to request a professional technician.

NOT LINED UP: If the oil ring and the gasket do not align up properly, do not panic, simply follow the following steps

  1. Open the refrigerator doors.
  2. Place a level on top of the refrigerator to check that the unit is leveled from side to side.
    (If a level is not available, fill a glass half full of water and set it on top of the refrigerator to gauge if it is level.)
  3. Adjust the leveling legs, if needed, until the cabinet is level side to side. The refrigerator legs should be extended so that the unit tilts to the back about 1/4" - 1/2".
  4. Once the cabinet is confirmed to be leveled, check the doors to see if they are aligned or if one is higher than the other.

For further assistance and more information on how to adjust the feet, visit our LG Refrigerator leveling Instructions article.

Author - Sanmi Ajanaku

Sanmi is a Home Appliance expert and author of this help library article. Please leave him feedback below about the page.

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