Thanks for the help, i am getting the gas exchanged today.

Hi :?: I am just starting out with a "unimig" 140amp DC invertor with lift TIG function. I am atempting to weld 20 guage(0.9mm) sheet metal for automotive repairs. The problem I am having is that it appears to be too hot and I am getting burn through, the welder is set at 10A(lowest it wil...