Lincoln Electric MIG gun
Replace when E31 or output shorts trace to a damaged gun cable or torch assembly.
$90-$250
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Lincoln Electric Power MIG Error Codes — What They Mean
Lincoln Electric Power MIG welders (210 MP, 256, 260, 350MP) are widely used MIG, flux-core, and multi-process welders. They display alphanumeric error codes on the digital panel when faults occur. This guide covers the most common Power MIG error codes.
| Code | Meaning |
|---|---|
| E10 | Thermal overload |
| E11 | Thermal overload (secondary) |
| E12 | Input contactor fault |
| E13 | Output contactor fault |
| E14 | Input voltage fault |
| E20 | Wire feeder communication fault |
| E31 | Output overcurrent |
Most Common Power MIG Error Codes and Fixes
E10 / E11 — Thermal Overload
Leave the welder powered on and stop welding — the fan must run during cooldown. Clean intake and exhaust vents. Check duty cycle: a Power MIG 256 at 200A is rated 40% duty cycle; running it continuously will trip E10.
E12 / E13 — Contactor Faults
Input or output contactor failed. Check contactor coil resistance (50–500Ω typical) and contact condition. Power cycle once — if E12/E13 returns immediately, the contactor or its drive circuit needs replacement.
E14 — Input Voltage
Measure input voltage at the machine terminals. Check for phase loss on three-phase models. Eliminate extension cords — Power MIG welders need full rated voltage under load.
E20 — Wire Feeder Communication
The control circuit lost communication with the wire feeder. Check all connections between the feeder and the power source. Reseat connectors. A faulty interconnect cable is a common cause.
E31 — Output Overcurrent
Short circuit at the output. Inspect gun, cable, and nozzle/tip for shorts. Power cycle after clearing.
Parts Often Needed
| Part | Notes |
|---|---|
| MIG gun | Replace if internal cable short found |
| Input/output contactor | Match to Power MIG model |
| Interconnect cable (feeder to PS) | For E20 |
Need Replacement Parts?
Before ordering, match the replacement part to the model number, electrical rating, and failure symptom. Check current prices on Amazon - prices and availability change frequently.
When to Call a Pro
Lincoln Electric authorized service handles internal component replacement for Power MIG units with persistent fault codes.