Our power was out for 6 days. A day or so after it came back on I notice the fridge is not cooling well; then the freezer. I cleaned condenser, etc. and then finally took evaporator shield off and see ice covering it. I unplugged the unit to defrost then plugged back in to see if it "magically" works again. It froze over again so I manually rotate clockwise the defrost timer til it shut unit off. This activated the defrost heater element and defrosted the evaporator coils. Slowly they froze over again so I figured I need a new defrost timer, went to Sears got a new one and replaced. It has a black wire that goes over one of 4 wiring connector prongs. (this is for more than one model so it can be connected a couple different ways] I'm guessing it goes on the one labeled "1" but although the instructions state to check the wiring diagram I can't find one in the manual or on the fridge. I feel it is the defrost timer but now I'm not so sure. Anyone know where to get the wiring diagram or have any suggestions? BTW; I can't get the heating element to come back on by rotating this one manually and also, that only worked on the old one, once. Thanks in advance.