Adham A Oak Hills , CA September 04, 2016 Refrigerator was not cold I have a built in commercial GE unit which had error codes for fans. Found only two volts going to fans which require 10 volts at least. Appliance pros did have the cheapest parts I found online. They did list two different mother boards. After a little more research I ordered the correct one and replaced board. Fan is now operational and fridge is cold. Never fixed an appliance before. Love the internet lol. Read More... 2 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours Tools: Screwdrivers