My 2010 Lincoln vantage was giving me trouble yesterday I was welding with another guy and he was using the leads off of the vantage and I was running the miller 304 off of the 240 plug. We were both burning 1/8 7018 rods at about 120amps the machine was bogging down or welding bad at all but it kept popping the 120 breakers we both had 11 amp Milwaukee grinders but neither one of use were using the grinders while welding . It didn't pop the 50 amp breaker so I know I wasn't over loading it?