Thanks for your help! The condenser fan is running fine, and the temp is now being controlled at 37 in refrigerator and 0 in freezer. So, can I assume that those thermistors are functioning ok? That would leave the evaporator thermistor then, right? I'm guessing there's no good way to test that other than ripping the back of the freezer out to get a look at the evaporator and thermistor?
If so, can you point me to a manual that would explain how to pull out the icemaker to get access to the back panel?