R43 is the evap fan motor resistor.....GE specifically says if that resistor is burnt, replace the evap fan motor and the mainboard. If you put another board in the fridge without changing the fan motor, you will fry the new board as well. Let me add to my previous post, the fan may turn and appear fine upon inspection but may have destroyed the defrost function of the board
Nailed it! Nice shootin', Brother Durham!
Evaporator fan motor: http://www.repaircli...ber=GFSF2KEXABB
The fane has a diode in it. This may be the problem.
That's not a diode, it's the evaporator thermistor. It would not / could not cause this problem. The fan motor is shorted internally and fried the muthaboard, taking out R43.