Forum Discussion
Executive45
Oct 16, 2015Explorer III
Frost will build up because of air entering the box and/or freezer. This can be caused by opening the doors too much, too often or as Wolfe stated, a defective drain line. I can't help you with the first one, that's on you. As for the drain line, that is the 1/4 line running out the back of the box into a small metal cup. Remove the outside access panel and find that line. It runs from the cup to the plastic tray that runs under the cooling fins inside the box. Make sure the one end has NOT come loose from the tray and look for a small plastic plug in the end that goes into the tray. This plug MUST be in place to keep air from getting into the box thru the hose. Finally, inspect the hose for brittleness. If it's brittle at the exposed end, then it's most likely brittle all the way up. This causes the hose to leak which will cause your problem....Dennis
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