Welding machine help needed Hobart

I had the neighbor come down today and he checked the voltage at the wall socket as well as the extension cord. Im no electrician at all but he was. We pulled the cover off the welder and he checked power coming into unit and says its good.
Ive taken all the wiring ends inside the machine off and made sure they were clean and making good contacts and found nothing. Im guessing its in the mother board or a capacitor or something like that. I dont weld enough to justify getting a new welder and i dont know if there are any local repair places near me.
Rod