I've used Appliance Pro in the past as it gives a great breakdown of the units parts. In my investigation everything g indicated it would be the evaporator motor. With Appliance Pro, major parts are normally accompanied by a tutorial video of how to replace the part. I am not a trained service technician just a retired individual with a agriculture background. The video was very helpful, took me through the entire process from disassembly to replacment then back together once again. The repair was successful and the refrigerator is back working correctly with this repair.