My son has to use a Lincoln Power Mig to tig weld by scratch start and only get 3-5 short welds before the electrode is buggred up. His Forman set the adjustments and my son has no clue what he did. Son says it's electrode negative with pure argon but that's it. He's complained but the Forman says t...

Do you still have it, if so post a pic of the front panel.
Tks Dave