Remove the cover on the back of the fridge and see if the compressor is running.
If not then does it make a clicking noise?
If it does then the problem could be a bad starting device or a compressor itself.
If it does not make a clicking noise then you have to check the defrost timer (could be stuck in the defrost position) and the cold control for continuity (it should be closed).
It is worth to fix any problem besides, probably, the compressor.
- The part number for the starting device
AP3108669
- The part number for the defrost timer
AP3110896
- The part number for the cold control
AP3108492
Gene.