fridge wasn't cold,freezer kept frosting up

6/15/11. Unplug unit,after removing all food,shelves,and the light bulb,plug the drain hole and carefully remove the 4 screws holding the evaporator cover and remove.Place a towel on the bottom and a second towel under the defroster unit and use the hair dryer to melt and dry all the frost,(keep a bucket close to wring out towels).Carfully work wire on the left side free and place it down the righthand side.I got lucky as mine was long enough to go all the way so I didn't have to splice it.Plug in the 2 wires to the new defroster heater and tighten the 2 screws that hold the heater in place.You can remove the plug in the drain hole after you tighten all 4 screws holding the evaporator cover. Now just put everything back in reverse order,plug in the unit and that's all there is to it.Check unit in a week to check status of repair.