Poor Weld Properties (Poor Grounding)

Poor Grounding Connection

Fronius · TPS i Welding Machine

What does Poor Weld Properties (Poor Grounding) mean?

Poor weld properties are observed, stemming from an inadequate or faulty grounding (earthing) connection to the workpiece. A poor ground can lead to an unstable arc and inconsistent weld quality.

Common Causes

  • Poor grounding (earthing) connection.
  • Insufficient electrical contact between the workpiece and the ground clamp.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Ensure there is good electrical contact between the workpiece and the ground clamp, preferably on a cleaned metal surface.

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Verified technical data. Last updated: March 2026

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Source: Fronius TPS i Welding Machine