My Kitchenaid unit (refrigerator on the top, freezer on the bottom) started building up a lot of frost kind of suddenly. I inspected the freezer door gaskets, and they seem to be sealing normally. What would be the next steps?

frost buildup

2 Answers 2


It could be that the door was left slightly ajar or that something was caught in the gasket when the drawer was closed, then someone else noticed later and fixed that problem. Then you come along and notice the frost, but no cause.

(The frost on the top of the drawer looks suspicious to me. That might be an indication of where an item was stuck in the gasket.)

Now that you have confirmed the gasket is seated properly, let it be for 24-48 hours. The automatic defrost should clear it away.

  • It looks like my unit actually did not have a problem. The fan is operating properly. I took everything out, gave it a good clean, turned on the "moisture removal" feature and after some 12-24h, it's all good. Accepting this answer.
    – Viccari
    Commented Sep 14, 2018 at 3:48

A common cause for this problem is failure of the fan unit in the back of the freezer compartment that circulates the air inside the refrigerator/freezer. You would want to determine if this fan is still working properly.

Note that the fan is typically hidden behind a plastic panel and not directly visible. Exact details regarding how to access and remove the fan will vary according to the make and model of your refrigerator.

  • I agree with the fan, I also have a upright that occasionally plugs up and the defrost melts then freezes at the bottom blocking the air flow but the fan is usually the root cause.+
    – Ed Beal
    Commented Sep 11, 2018 at 14:55
  • 1
    Regarding the fan - be sure that the contents of the freezer are not blocking the fan's output.
    – mike65535
    Commented Sep 12, 2018 at 14:01

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