[KingLeo]

I need to know what to do next to my refridgerator. The defrost heaters burned up and I replaced them and the thermostat. Then the timer wouldn't cycle over into the defrost mode unless it was done manually. I replaced the timer and it worked for a few days but now the coils are again freezing up. I know that the timer was working when I put it on because when the refridgerator would cut off,I would check to see if the defroster came on and it was. Can someone help me figure out what the problem is?

[woodchuck]

Having replaced all the components of the defrost system, it seems you're at a dead end. If you call a service man he will recheck all those parts making sure the timer runs and the heaters come on etc. Of course since you've already done it you can check it again. Look for plug-in connectors that may have come loose etc.