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
Check the inner liner for any kinks, accumulated dirt, or signs of damage.
- 2
Replace the inner liner if it is faulty or damaged.
Verified technical data. Last updated: March 2026
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Source: Fronius TPS i Welding Machine