Heres a little more info on this old airco welder that i just cant seem to figure out.Has gas flow, has water flow, but can't get it to arc. The model number is 3A/DDR 24 HPA. It lookes to have a RFC 23A Foot pedal. Looked up diagram to make sure we wired it right. It was wired wrong so we wired it to the diagram and it didn't make a difference.Any more help would be great. Thanks.Here are some pics.