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No Indicators Lit (Mains Fuse)

Mains Fuse Protection Tripped

Fronius · TPS i Welding Machine

What does No Indicators Lit (Mains Fuse) mean?

The welding machine's indicators are not illuminated when the device is powered on, indicating that the mains fuse protection has activated, likely due to an overcurrent condition.

Common Causes

  • Mains fuse protection has tripped.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Change the mains fuse protection for the supply line.

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 260)Search more codes in this manual