Kenmore Refrigerator Not Cooling or FreezingMy Kenmore 21.9 cubic ft. side-by-side refrigerator model #106.53332300 stop working. I can see that all lights are working, but it is not cooling and not freezing. If I unplug and plug back again, it will work for a few days, but then stop again. We already changed the start relay. What else could it be?