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ErrorLib — Industrial Fault Code Library

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Irregular Wire Speed (Inner Liner Fault)

Faulty Inner Liner in Welding Torch

Fronius · TPS i Welding Machine

What does Irregular Wire Speed (Inner Liner Fault) mean?

Irregular wire speed is observed due to a malfunction or damage in the inner liner of the welding torch. Kinks, dirt, or other defects in the liner can impede the smooth passage of the welding wire.

Common Causes

  • Inner liner in the welding torch is faulty.
  • Inner liner has kinks, dirt, or other damage.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the inner liner for any kinks, accumulated dirt, or signs of damage.

  2. 2

    Replace the inner liner if it is faulty or damaged.

Browse all codes in this manual (34)
Verified technical data. Last updated: April 2026

Related Faults

Current limit exceeded!Current Limit ExceededExcessive Spatter (Contamination/Magnetism)Contaminated/Magnetically Charged SystemIrregular Wire Speed (Brake Force)High Braking Force
Source: Fronius TPS i Welding Machine
Open Manual (Page 263)Search more codes in this manual