Warm freezer and no ice

This story starts with a GE side-by-side refrigerator that has always had wide temperature swings and a temperamental water dispenser. The ice maker was not making ice, and the built in digital thermometer showed it was running warm. I suspected that the heat exchanger was full of dust and so looked there. What I found was that the condenser tank was hot to the touch and the fan wasn’t running. As an experiment, I aimed a fan at the it for a while I saw that the freezer temperature dropped back to normal.
.The fan is marked as 11.2 DC so I checked for voltage at the fan and found some. With three wires and no wiring diagram I wasn’t sure this answered all the questions, but hooking the fan to a 12 volt power supply didn’t get it to spin.
I priced parts at a couple websites before using partselect.com . They also have a good diagram to look at (Sears diagrams are really poor). I ordered the part with 2-day shipping; it arrived on time, was correct and fixed the problem.