Lincoln Electric Welder Error Code 37: How to Fix It

Q: What causes Lincoln Electric error code 37?

Error code 37 is caused by an output over-current condition, typically from a short circuit in welding leads, damaged cable insulation, loose connections, or faulty work clamps that create unintended electrical paths.

Q: Can I continue welding with error code 37?

No, you should not attempt to weld when error code 37 appears. This safety feature protects your welder from internal damage. The unit will automatically shut down until the short circuit condition is resolved.

Q: How do I test for short circuits in welding cables?

Use a multimeter set to continuity mode to test between the electrode lead and work clamp lead with the welder unplugged. There should be no continuity (infinite resistance) when the electrode is not touching the workpiece.

Q: Will damaged welding cables cause error code 37?

Yes, damaged welding cables with exposed copper wire or compromised insulation can create short circuits that trigger error code 37. Always inspect cables for cuts, burns, or damaged insulation.

Q: How often should I inspect my welding cables?

Inspect welding cables before each use and perform a thorough examination monthly. Look for damage from heat, cuts, abrasion, or compression that could compromise the cable's insulation and cause short circuits.

Abstract

Lincoln Electric Error Code 37 indicates an output over-current condition caused by a short circuit in your welding leads or cables. This safety feature protects your welder from damage by immediately shutting down power when it detects excessive current flow that could harm the internal components.