Why is the arc unstable on my Lincoln Electric Welding System?
- BBrenda WellsJul 31, 2025
To troubleshoot an unstable arc or poor starting with your Lincoln Electric Welding System, begin by verifying the correct input voltage to the machine and ensuring the proper electrode polarity for the welding process. Inspect the gun tip for wear, damage, or incorrect size, and replace if necessary. Confirm that you are using the correct gas and flow rate for the process, specifically for MIG welding. Check the work cable for any loose or faulty connections. Also, examine the gun for any signs of damage or breaks, and ensure that the drive roll has proper orientation and alignment. Finally, verify that the liner is the correct size.