My Magic Chef Refrigerator fridge lost its ability to push cold air. I removed the fan panel in freezer and temp got little cold.. some ice build up on coil but nothing blocking air ways to fridge. The fridge won't get cold at all. Compressor turns on and one line was hot one line was ice cold building frost on it until i put panel back on fan in freezer, then freezer got warm again. Small fridge one fan in freezer and one electronic thermostat in fridge. Any suggestions?? Probably need a new compressor??