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Torch trigger malfunctions
Cause:
Torch control lead is faulty
Remedy:
Exchange the torch control lead / send the torch in for repair
Weld-seam porosity
Cause:
Spatter accumulating in the gas nozzle, causing inadequate gas-shielding of the weld-seam
Remedy:
Remove the welding spatter
Cause:
Either the shielding-gas hose has holes in it, or it is not connected up properly
Remedy:
Change the shielding gas-hose
Cause:
The O-ring seals on the connection points are cut or defective
Remedy:
Change the O-ring seals
Cause:
Moisture / condensate in the shielding-gas hose
Remedy:
Dry the shielding-gas hose
Cause:
Shielding-gas flow is either too high or too low
Remedy:
Correct the shielding-gas flow
Cause:
Insufficient shielding-gas flow at the beginning or end of welding
Remedy:
Increase the gas pre-flow or post-flow
Cause:
The welding wire is rusty or of poor quality
Remedy:
Use only high-quality wires that are free of contaminants
Cause:
Applies to gas-cooled welding torches: Shielding-gas leakage from non-insulated inner liners
Remedy:
On gas-cooled welding torches, use only insulated inner liners.
Cause:
Too much parting agent applied
Remedy:
Wipe off excess parting agent / apply less parting agent
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