Hi all, I'm new to the forum, I have a Power Craft combination gas / no gas MIG welder 30-135A.... I bought it possibly 10 years ago but embarrassingly haven't attempted to use it until now (life got in the way of my welding plans, but now I finally have a worthy project!). It's been stored dry and boxed up all this time. But there appears to be a problem with it. It turns on, the fan spins up, and when I press the trigger the wire feeds correctly... But there's no arc. I've even tried aiming directly at the earth clamp, but nothing. The 'overload' light does not illuminate, so it's not that. I've initially been attempting to use the 0.9mm flux cored wire that it was supplied with (with reversed polarity according to the instructions). It also came with gas welding wire and equipment too which I haven't yet tried. Could this be a problem with set up or does it sound like a fault? Can anybody advise on how I can determine what the problem might be? Attached is a photo of the welder and the wiring diagram. Thanks in advance!