My Kenmore refrigerator is forming a thin sheet of ice every 2 or 3 days at the bottom of the freezer. I watched this video on youtube which is exactly the problem I’m encountering. She made fixing this problem looked easy.

I checked the drain tube (a blue arrow points to the drain tube and the location where the black rubber cap clogs the drain tube) and found that it’s clogged with a black rubber cap.

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Is the black rubber cap part of the refrigerator interior? Does it need to go somewhere inside the refrigerator? Or I can throw it away and be done with the the ice sheet issue?

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I’ve added the model number of the refrigerator here

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The refrigerator does have a drain pan. After I removed the rubber cap from the drain tube, it’s already accumulating water. I have added a video of the pan.

  • Looks like the caps that come on refrigeration linesets. Someone at the factory was crap at policing their garbage. It doesn't look like w/e duck-drain thing she also didn't have. Hers was just full of junk.
    – Mazura
    Commented Apr 30, 2022 at 4:47

1 Answer 1


From what you've told us, that black cap should not be there. The water that's formed when the frost melts during the defrost cycle collects in a pan at the bottom of the freezer and then drains out through that tube to a drain pan under the refrig. From there the water evaporates.

Here's a link to an answer I posted to a similar problem:

How to prevent fridge freezer drain from freezing over?

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