Your freezr drain is blocked or frozen. What you need to do is remove the ice rack then in the front of the freezer you will see 2 or 3 plastic plugs on the freezer floor remove the plugs and there might aso be some 1/4 inch screws farther in on the freezer floor. also remove the back of the back of the freezr and then lift out the bottom floor. under the evaporator you will see a lot of ice or just fod blocing the drain. I will bet its all full of ice. Carefully remove all the ice and hot water will help once you get the buk of it out. The hot water will make sure the drain is not blocked with ice. Once its al clear install in the reverse order and things should be good. This is a common problem with this unit.Good Luck
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