Miller 100 spool gun arc wandering

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    • May 31, 2025 at 8:29 pm #55558
      Participant
      Thomas Decker

        Hi guys, my Miller 100 spool gun is arc wanders bad with 0.030-inch wire at 18V, And welds is uneven. Any solution?

      • June 1, 2025 at 4:11 am #55560
        Keymaster
        Lauren Wilson

          Arc wandering is from grounding or gas issues. check ground clamp for solid connection, adjust voltage to 19V, And set wire feed to 230 ipm. clean contact tip regular, and use a gas lense for better flow. this stabilizes the arc.

        • June 1, 2025 at 11:41 am #55561
          Participant
          Adrian Reynolds

            tighten ground clamp, It stabilizes the arc.

          • June 1, 2025 at 6:22 pm #55562
            Participant
            James Montes

              Use 25 CFH argon for better coverage, check polarity is set right, And clean aluminum with alcohol.

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