Hi,
New to this, I have built and commisioned a Reprap Fisher with Duet 0.6 electronics, I think I originally wired the fan reverse polarity, after correcting the wires still doesn't work. Anybody have any idea if just the fan or the duet board will have blown too.
When i set the fan from the web interface the Fan led comes on, is this actually the fan i should be looking at. Is it work putting a scope on the output from the duet, I assume if it is PWM I should see a 19v square wave with mark space ratio changing as I increase setting on web.
Will operating the mosfet in open circuit damage it.
Any pointers would be appreciated