Have you opened up the plug to inspect the insides? Are the wire connection schemes secure? Screw-down terminals? If they go loose on you, that would/could cause problems. I've had them go loose on me before. Then I loc-tite'd them. Now that I think about it, I should have soldered the bare wires t...

Welcome to the forum. Any chance you can test the machine on a different circuit? Breakers can go bad, an easier fix than digging into the guts of the welder. Thanks, Artie. I was hoping it was the breaker but I was able to try it at a friends and it did the same thing. I did have to replace the pl...

My father-in-law just gave me an old wire feed welder. I can't find a name on it anywhere but as far as I can tell from the serial number it is a Hobart built in 1986. It is a 240V model. The problem I am having is that sometimes when I press the trigger without even starting a bead it trips the bre...