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10 Troubleshooting
Fault
Torch necks gets hot
No trigger function
Wire burned solid in the
contact tip
Irregular wire feed
Arc between gas nozzle
and workpiece
Erratic arc
Pore formation
Tab. 11
Troubleshooting
EN - 20
NOTICE
• Please consult the operating instructions for the welding components,
such as the power source, wire feeder, recirculating cooling unit, etc.
Cause
• Contact tip not tightened
• Contact tip loose on torch side and
toward the workpiece
• Coolant flow too low
• Control lead interrupted/defective
• Flow switch in the recirculating
cooling unit has been triggered
• Wrong parameters set
• Contact tip worn out
• Guide spiral liner/PA liner clogged
• Contact tip and wire diameter not
matched
• Wrong contact pressure set on the
wire feed unit
• Spatter bridge between contact tip
and gas nozzle
• Contact tip not matched to the wire
diameter or contact tip diameter
enlarged
• Wrong welding parameters set
• Wire guide unit worn out
• Strong spattering in the gas nozzle
• Insufficient or lack of gas coverage
• Air currents blowing shielding gas
away
MIG/MAG ROBO welding torch
Troubleshooting
• Check and tighten
• Check and tighten
• Check the cooling system
• Check/repair
• Check the coolant level and top
up if necessary
• Check or correct setting
• Replace
• Clean both directions with
compressed air or replace if
necessary
• Replace contact tip
• Correct as specified by
manufacturer
• Clean and spray gas nozzle
interior
• Check the contact tip
• Correct the welding parameters
• Replace the wire guide liner unit
• Clean the gas nozzle
• Check the gas cylinder contents
and pressure setting
• Shield the welding area with
partitions
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