Poor Weld Properties (Contact Tip)
Wrong/Worn Contact Tip or Narrow Hole
Fronius · TPS i Welding Machine
What does Poor Weld Properties (Contact Tip) mean?
Poor weld properties result from using an incorrect contact tip, a contact tip that is worn out, or one with a hole that is too narrow for the wire electrode. This affects wire feeding and current transfer.
Common Causes
- Wrong contact tip installed for the application.
- Contact tip is worn out.
- Hole in the contact tip is too narrow, impeding wire feed.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Replace the contact tip with a suitable one for the wire electrode material and diameter.
- 2
Inspect the contact tip for wear and replace if necessary.
Verified technical data. Last updated: March 2026
Related Faults
Source: Fronius TPS i Welding Machine