Why is the wire speed low, high, or erratic on my Miller Welding System?
- MMichelle DavidsonAug 3, 2025
First, readjust the front panel settings. Then, change to the correct size drive rolls and readjust the drive roll pressure. Replace the inlet guide, contact tip, and/or liner if necessary. Check the position of the input jumper links. If the issue persists, have a Factory Authorized Service Agent check the main control board.