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Refrigerator Repair · Troubleshooting

How To Fix Ice Buildup In Your Refrigerator/Freezer

If your refrigerator has ice build up on the inside, here are a few things you can check yourself to fix the issue. A common cause for ice buildup is a faulty door seal. If a refrigerator has a bad door seal, the outside air will pass into the fridge and cause the ice build up problem you are experiencing.

Another cause for this could be that the door hinges are loose or not attached properly leading to outside air entering your fridge/freezer. Check to be sure the door hinges are tight and are attached and aligned properly.

refrigerator freezer ice buildup

Some other simple things you can do to try and remedy this issue are easy to try yourself. You can try moving the refrigerator away from the wall a little bit more to give it extra room for the air to circulate. The heat from the compressor should have sufficient room to dissipate. If the refrigerator is too close to the wall problems will occur.

Another solution may be to clean the vents on the back or below the fridge as they can be clogged with dust and debris. Clogged vents cause air circulation problems that lead to many common refrigerator problems.

If the ice build up is only happening in the freezer, the freezer drain is probably clogged. To unclog the drain you should first unplug the unit from the wall. Remove the freezer covers to expose the frozen drain. Pour hot water down into the drain hole until you see the water dripping into the drain pan under the refrigerator.


How to remove and replace the door gasket on a refrigerator


How to unclog a refrigerator defrost line

Modern day refrigerators are frost free. They should not have to be defrosted manually. If however you have an older refrigerator or you want to manually defrost your newer fridge, here is how:

  1. First remove food and store it in another fridge or cooler.
  2. Unplug the refrigerator from power and remove any drawers or shelves.
  3. Wedge the door to keep it open for the defrost procedure.
  4. Lay a deep pan or similar at the bottom of the refrigerator to catch the water when the ice melts.
  5. Leave everything sit until all the ice has melted (this is a good time to wipe down the inside of fridge).
  6. After the refrigerator is defrosted and the ice is gone, clean and replace the drawers and shelves.
  7. Plug in the refrigerator back into power.
  8. Set the thermostat dial to be sure the temperature is set correctly.
  9. Shut the refrigerator door.
  10. Once the fridge is cold you should watch for any ice buildup.
  11. Check to be sure the fridge is at the proper temperature and no ice has formed.
  12. Put the food back in the refrigerator.
  13. Periodically check fridge to be sure no more ice has formed.

defrost a refrigerator

If your refrigerator is still under warranty, make sure to call the company you purchased it from or call the 800 number of the company who manufactured it and schedule service. Find out if it is under warranty before doing repairs as doing repairs yourself could void the warranty on the unit.

NOTE: At times a powdery type of ice will form in your refrigerator if it is being repeatedly opened and closed. Keep this in mind as your only issue may be this and no repairs are necessary.

Other things causing this issue could be a defrost timer,  bad temperature sensor or bimetal defrost thermostat. In this case you will most likely need to call a repair person or find someone who is experienced with diagnosing appliance faults and removing and replacing components.

Have experience with ice buildup in your freezer refrigerator? Please help out everyone who seeks information on this page by leaving a comment below.

Keith Schneerer

Written by Keith Schneerer

Certified Appliance Tech · Founder, RemoveAndReplace.com

Keith has spent 30+ years repairing machines, starting as a military mechanic and later maintaining food processing equipment before moving into appliance repair. He founded RemoveAndReplace.com to share field-tested repair advice.

More about Keith →

55 thoughts on “How To Fix Ice Buildup In Your Refrigerator/Freezer”

  1. DIY Project Help Tips

    Quang Vo,
    What is the model number on your Whirlpool refrigerator (gold edition)?
    NOTE: It is usually located on the inside door panel or in freezer area.
    -RR

  2. I have a Whirlpool refrigerator (gold edition), double doors and ice and water thru a little window.
    Recently, I see a little ice cover at the bottom of freezer and the ice cover outside the fruit/veggie clear cabinet (at bottom of fridge side), and the fan keep running (instead of stop then go again) I would like to have a suggestion what cause it?
    The temperature sensor or compressor?

  3. I have new Whirpool.
    I need to call the maintenance people in the Apartment complex for ice build up.
    It is about every 1 1/2 months for almost a year now.
    I thought these new ones are supposed to be frost free.
    The repair person said problem is due to air vents being blocked.

  4. It is possible that you have an issue with the defrost timer which tells the fridge when to go in and out of defrost.
    If this unit fails, then you will have the ice build up over and over again even after repeated “manual defrosts”.
    The timer is usually built into an electronic board which contains very sensitive components which can and do go bad especially in an area prone to power surges.

  5. I have frost and ice build up in vents behind meat drawer of my Kenmore Elite Refrigerator. I have thawed the ice twice. Now it needs it again. This shouldn’t happen in an expensive refrigerator. How can I prevent this from happening again? Is it worth calling a Sears repairman, or is this a perennial problem?

  6. I have a Samsung model RM255LABP, the bottom freezer drawer is always having a thick sheet of ice, in order to open the drawer need to apply pressure.

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