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Cause: Welding torch is faulty
Remedy: Change the welding torch
Cause: Gas solenoid valve faulty
Remedy: Replace gas solenoid valve
Poor weld properties
Cause: Incorrect welding and/or correction parameters
Remedy: Check the settings
Cause: Poor grounding (earthing) connection
Remedy: Ensure good contact to workpiece
Cause: Inadequate or no protective gas shield
Remedy: Check the pressure regulator, gas hose, gas solenoid valve,
torch gas connection, etc.
Cause: Welding torch is leaking
Remedy: Change the welding torch
Cause: Wrong contact tip, or contact tip is worn out
Remedy: Replace the contact tip
Cause: Wrong wire alloy or wrong wire diameter
Remedy: Check the wire electrode that has been inserted;
check the weldability of the base material
Cause: The shielding gas is not suitable for this wire alloy
Remedy: Use the correct shielding gas
Excessive welding spatter
Cause: Shielding gas, wirefeed, welding torch or workpiece is contami-
nated or magnetically charged
Remedy: Perform R/L alignment;
adjust arc length;
check whether shielding gas, wirefeed, welding torch position or
workpiece is contaminated or magnetically charged
Irregular wire speed
Cause: Braking force has been set too high
Remedy: Loosen the brake
Cause: Hole in the contact tip is too narrow
Remedy: Use a suitable contact tip
Cause: Faulty inner liner in welding torch
Remedy: Check the inner liner for kinks, dirt, etc.
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