Millermatic 211 autoset arc jumps wildly

Jacqueline Casey · 2025-04-04T19:23:00-04:00

i’m so a bit confused cause my Millermatic 211 Autoset arc jumps like crazy on mig with 0.035-inch mig wire at 20V, welds look sloppy and uneven. How i can avoid this problem?

This topic has 3 replies, 4 voices, and was last updated 8 months, 1 week ago by Tiffany Mccullough.

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- April 4, 2025 at 7:23 pm #52848
  Participant
  Jacqueline Casey
  i’m so a bit confused cause my Millermatic 211 Autoset arc jumps like crazy on mig with 0.035-inch mig wire at 20V, welds look sloppy and uneven. How i can avoid this problem?
- April 5, 2025 at 2:22 am #52850
  Participant
  Eric Davis
  Tighten the ground clamp on your Millermatic 211 Autoset, loose grounds cause arc jumping, set voltage to 18V.
- April 5, 2025 at 8:58 am #52851
  Participant
  Olivia Dillon
  Clean metal with alchohol before welding, dirty surfaces mess up arc, use 220 ipm on your Millermatic.
- April 5, 2025 at 3:26 pm #52852
  Participant
  Tiffany Mccullough
  Check polarity on your Millermatic 211 Autoset, use DCEP for mig wire, fixes arc issues.
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