@charmane Gantz
What is the make and model number of the refrigerator?
Not sure what you mean by the evap fan & motor, fan motor or compressor?
Is the evaporator unit getting cold?
Is the compressor running?
If the compressor is running check if the evap unit is cold. if not then there is a sealed system problem i.e. faulty compressor (is it hot to the touch, are the condenser coils warm/hot?) or a lack of refrigerant.
You would need to measure the high and low pressures in the sealed system to know what the problem is. Depending on your location due to the environmental regulations regarding the handling of refrigerant gases you may need a licensed refrigerator repairer to check this.
Also depending on the make & model there can be a 5 or even a 10 year parts only (you pay labour cost) manufacturer's warranty on the sealed system. Check the refrigerator's user guide for the warranty details