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Welding torch gets very hot
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Short service life of the contact tip
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NOTE!
In CrNi applications, greater contact tip wear may occur due to the surface fi-
nish of the CrNi wire electrode.
50
Welding torch has been operated above the maximum welding cur-
rent
Reduce welding power or use more powerful welding torch
Welding torch is inadequately sized
Observe duty cycle and load limits
For water-cooled systems only: Coolant flow too low
Check coolant level, coolant flow, coolant contamination, displace-
ment of the hosepack, etc.
Tip of the welding torch too close to the arc
Increase stick out
Incorrect feed rollers
Use correct feed rollers
Wear of the wire electrode due to excessive contact pressure at the
feed rollers
Reduce contact pressure at the feed rollers
Wire electrode soiled/rusted
Use high-quality wire electrode without soiling
Uncoated wire electrode
Use wire electrode with suitable coating
Incorrect dimensions of the contact tip
Use contact tip of the correct size
Duty cycle of the welding torch too long
Reduce duty cycle or use more powerful welding torch
Contact tip overheats. No heat dissipation due to contact tip being
fitted too loosely
Tighten contact tip
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