If it's the evaporator fan in the freezer your talking about that only goes on when the compresser comes on. If you have a frost buildup in the freezer that to me sounds like something in the defrost mode that has failed. With the frost buildup, the evaporator fan can't push the cold air into the fridge to keep the fresh foods cool. I would look into the defrost timer, defrost heater or defrost terminator (thermastat) for the problem.
JP
April 2005
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