My cooling fan is possessed by satan.
After replacing my Printrboard Rev D with a new Printrboard Rev D, the fan is misbehaving. When I power the board up, the fan comes on at 100%. It will continue running until there's a z-axis move, then it will shut off. After about 2-3 minutes, the damn thing comes back on. I am using the same Marlin firmware I used in the previous Printrboard and the fan was fine (until I shorted the fan contacts and let out the magic smoke from the driver). Is there something I might be missing in Marlin that controls the fan?