Hey, I think I might have damaged my K8200’s controller. Everything is working correctly, but I cannot control the printer’s fan anymore.
I was measuring voltages on the controller board and accidentally shorted the pins to control the printer’s fan. The fan was set to run at 50% capacity (~7.5 V) at the time and a small bit of smoke developed when shorted. I immediately disconnected the power supply and usb cable. Despite my initial panic, everything is now working on the printer except the fan; when activated in repetier, the fan’s LED does not light, and I cannot measure any voltage across the pins.
Is there any way to fix this or find the source of the problem without replacing the whole controller board?
Thanks.
