Frigidaire refrigerator evaporator fan not running

I have a problem with the evaporator fan not running. I am not getting voltage to the fan. Is this for sure a bad adaptive defrost control or are there other problems to check first? Thanks.

If the compressor is running and there is no proper voltage to the fan motor at the same time, replace the ADC. The only other cause of it can be a broken wire which can be checked for continuity from the ADC plug to the fan motor plug.

Here are the breakdown diagrams and http://www.appliancepartspros.com/partsearch/model.aspx?model_id=5155371

Gene.