It looks like we are both having the same problem. I have recently texted a welding repair shop that's in the next town over to see if they can help. And taking a meter to it everything I found was going to AC when there should be a bridge rectifier that turns it to DC. The wire feed was getting...
I have one. Right now I'm having problems with the wire feed not working but I've used it quite often and it's a great machine. What can I do to help you