Geeetech

DSC_6546.JPG I fixed the M7 diode with a replacement one and still have the same issue with the hot end and fan controller outputs. The voltage across the hot end terminals read 0v and 24.3v across the positive hot end terminal and and main ground. The fan terminals read 3.06v and 18.6v. The activi...

It the first one above the 5a capacitor

The one on my board says M7 so I believe its a M7 ln4007

Yes it is one of the M7 diodes above the square 5A orange capacitors

That is what I have, but another problem came up while transporting the board. One of the M7 fried, so I will try to repair that and see.

Ok Fan 0 reads 18v and HE0 reads 24v. I've tested the fan with an external power source and it work so I don't believe the fan or hotend is fired.

OK Fan0 reads 18v and HE0 reads 24v

I recently bought a rumba controller board and had it up and running for a short time when all power towards the hotend and fan connector stopped working. Stepper motors are still operational and the hotend and fan controllers are only half lit when code is sent to them. All their voltage read zero.