freezer is frosted for the 2nd time around coil.1st time I let it thaw and started it back up and it worked for 1 week. Now it is frosted again, and I have thawed it, but now the freezer won't start running. If the defrost timer was stuck in the defrost mode, then it wouldn't come on, but the problem with that is when I turned it off the freezer fan was running meaning it was not at the defrost point. Also, how could i be stuck in the defost mode and have ice on the coils? It should be melting from the heater? Can you tell me how to find the defrost timer? Other suggestions.