Hi, my name is Mike and I have been in the home improvement and repair field for 20 years. I will be very glad to help you today. Unfortunately the items in the freezer have stopped the vent and caused the evaporator to freeze up beyond what the heater can melt off. Either access the back of the freezer and melt the ice on the evaporator with a hair dryer or empty the freezer and defrost it leaving the door open and the freezer unplugged for 24 hours. Either way also be sure to move the items that are blocking the vent.
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