If your looking for any powcon parts I have a few boards and other stuff. You can write me here or at blawless2012@gmail.com I might and I say might be able to help you diagnose a problem on the SM series machines. I've got a couple I raised from the dead. I'm more hack than tech-type but I figured it out. If you have any powcon stuff you want to get rid of I might be interested. If your gonna hoard something it might as well be a semi-obsolete welder. No wonder I didn't get very far in life.