I’ve got a 1980s Tig 250 AC/DC machine. It’s wired properly for 208V single phase. It Tig welds fine and operates normally in the Tig welding mode. However when in stick welding mode the output even at the highest setting will barely allow me to make a bead with 3/32 6011 rod. The low output is in all ranges and all polarities. I was hoping someone might have experienced this. Thanks for your time.