All good advice but my understanding of the problem relationship between the board and fan is that the fan burns the board out, not the board burns the fan out. If my reasoning is correct then replacing the fan first followed by the board should not result in the fan affecting the board or the board affecting the new fan. Does anyone agree with that?
Also, I did check the FF door switch and the door is still high enough to activate the switch, That was good advice, I have come across that problem a few times in the past years ut it does not appear to be an issue this time.
Has anyone come across the icemaker heater staying on and causing a problem like this or the thermistors in the FF and bottom of the freezer going bad?