I was welding with my 175+ wirefeed welder, and had trouble with it. When I squeezed the trigger, it either would not feed, or feed and not stop. It would not feed as in no noise, no click, no motion of rollers, nada, zip, zilch. I disassembled the gun, suspecting a piece of crud in there. Looked pretty good. Reassembled, but it did the same thing. Took loose the two little terminals leading from gun to panel and reattatched, and it works now.
Anyone have a similar problem?