Poor Weld Properties (Inadequate Gas)

Inadequate/No Shielding Gas

Fronius · TPS i Welding Machine

What does Poor Weld Properties (Inadequate Gas) mean?

Poor weld properties are observed due to an insufficient or completely absent supply of shielding gas. This compromises arc stability and weld protection from atmospheric contamination.

Common Causes

  • Pressure regulator malfunction.
  • Damaged or improperly connected gas hose.
  • Faulty gas solenoid valve.
  • Problem with the welding torch gas connection.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Inspect the gas pressure regulator for correct operation and set pressure.

  2. 2

    Check the gas hose for proper connection, kinks, or damage and replace if necessary.

  3. 3

    Verify the welding torch gas connection for security and absence of leaks.

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

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Source: Fronius TPS i Welding Machine