I got this GE Fridge Freezer on bottom, it's not cooling hardly so I found the compressor fan wasn't working. I purchased a new fan and installed and it didn't work either.

Before discovering the compressor fan was not working I took the freezer panel off to check evaporator and it was fine. At that time I didn't unplug the fridge I just turn the temp setting to off and the defrost heater was on. Not sure if it was just the right timing or not. Is it possible for a fridge to be running and defrosting the same time causing the compressor fan not to run?