Torch Overheating (Inadequate Coolant)
Inadequate Coolant Flow (Water-cooled Systems)
Fronius · TPS i Welding Machine
What does Torch Overheating (Inadequate Coolant) mean?
In water-cooled welding systems, the torch becomes very hot due to an insufficient flow of coolant. This can be caused by low coolant levels, blockages, or contamination in the cooling system.
Common Causes
- Inadequate coolant flow in water-cooled systems.
- Low coolant level.
- Coolant contamination.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Check the coolant level in the cooling unit reservoir.
- 2
Verify the coolant flow rate through the cooling system.
- 3
Inspect the coolant for any signs of contamination.
Verified technical data. Last updated: March 2026
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Source: Fronius TPS i Welding Machine