Customer Questions and Answers for Refrigerator Defrost Timer by Whirlpool

Hello L.S.,

There are a couple of things to check in order to determine the issue. First and simplest, are both the freezer fan, (evaporator fan), and the fan behind the unit, (condenser fan), running? If not, this is the issue. If they are running, you need to make sure the hot coils, (condenser coils), are clean. If they clog with lint, the unit cannot cool down to temperature. If these things check out, you will need to remove the rear wall of the freezer and check the frost pattern on the evaporator coils. You are looking for a frost pattern that is fairly even from top to bottom. It will always be a little heavier near the top, but if the bottom of the coils are free of any frost, the issue is in air circulation or within the sealed system. The thing you don't want to see is an ice ball at the point where the lines come into the freezer compartment, since this is an indication of a freon loss. From this point, we need to know what you have found so we can further pursue the problem.