I just experienced a crash. The printer halted and the power was completely down. I had to unplug the power adapter to get it back to life. After little investigation, it seems that I have caused a short at the fan on top. I was testing different fan combinations yesterday and had not noticed there was a little strand of the wires in the open after reconnecting the molex connector. Due to the movement of the printer I guess it has caused an unlucky short circuit.
But now, when I plug in the 19V power, the top fan starts blowing, and does not react anymore to M106 or M107 command. In other words: have I damaged the PWM connection of this fan?
For the rest the printer seems to be working well.
How can this be repaired?
cheers,
Gijs