I have a bottom freezer model with a bad control freezer temp, the part with the tiny metal bulb that senses the temp and makes a little switch open or close inside the same part. I know it's bad. My freezer was getting completely frosty every week or two and the fridge was not cool enough. I first replaced the defrost timer in the fridge but I did not test it to see if it was definitely bad. The problem is just the same, and when I test the new defrost timer, it appears to be bad as well. When I test it with an ohm meter, the black wire gets no reading at all. My question is this: if the control freezer temp part is bad, can it burn out or somehow ruin the defrost timer? OR, could it make the defrost timer appear not to work? If one would not affect the other, then I was sold a bad defrost timer. If one can ruin the other, then I caused it and need to order and pay for two new parts. Anyone know the answer on this?