Hi all, I am having problems with welding anything steel, My gun cap is arcing to the metal I am welding. I have never had this happen before. I am running 030 solid wire,75/25 gas ,220 power,I have tried auto set up and manual set up.Not alot of hours on this machine (aprox30) My MM172 was much more forgiving than the new MM211. I am not sure whats up.Any body have this problem. I have checked polarity and that is where its supossed to be.