I have had my son's Millermatic 175 here for some time now. I last used it about 3 or 4 months ago and it worked great. Today he comes over to weld some small stuff and it don't work. Crap! Turn it on and nothing happens. The internal fan comes on, but it is far from being up to full speed. No gas flow and no wire feed.
I took the cover off and didn't see anything wrong. All wiring seems to be clean and secure. I didn't mess with the capacitor at all, but everything else was ok. No burn marks that I can see on the circuit board and the green light comes on. Guess I'll ave to take it in for service.
This machine is a few years old and has seen very light use. Not even a full spool of wire has been run through it. Maybe 1/2 a spool. Not even any scratches on the thing. :-) I am suspecting that the circuit board has gone bad so here is the question. What should I expect when I take it in for repair? I am assuming that it will most likely be the circuit board since I have seen in a couple of forums that this is a somewhat common problem with this machine, but the symptoms they list when this happens are slightly different. Are there any other problems that you know of that might cause this?