I have a MM250 that seems to be surging. It will not hold a continous arc at low voltage on thin metal. I have to turn voltage up to get it to weld and then its too hot and burns through. On thicker metal it sounds like it is surging and weak.
i have a new gun and new roll of wire. Wire speed seems to be working fine.
Any suggestions on where to start??????
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Thread: Millermatic 250 Surging Problem
05-04-2013, 01:34 PM #1Junior Member
- Join Date
- May 2013
Millermatic 250 Surging Problem
Last edited by JRS; 05-04-2013 at 01:56 PM.