No shielding gas
All other functions are OK
Cause:
Gas cylinder is empty
Remedy:
Change the gas cylinder
Cause:
Gas pressure regulator is faulty
Remedy:
Replace gas pressure regulator
Cause:
The gas hose is not connected, or is damaged or kinked
Remedy:
Fit gas hose, lay out straight Replace faulty gas hose
Cause:
Welding torch is faulty
Remedy:
Replace welding torch
Cause:
Gas solenoid valve is faulty
Remedy:
Contact After-Sales Service (arrange for gas solenoid valve to be re-
placed)
Poor weld properties
Cause:
Incorrect welding parameters
Remedy:
Check the settings
Cause:
Grounding (earthing) connection is incorrect
Remedy:
Check the grounding (earthing) connection and terminal for correct
polarity
The welding torch becomes very hot
Cause:
The dimensions of the welding torch are inadequate
Remedy:
Observe the duty cycle and loading limits
Cause:
Only on water-cooled machines: water flow rate is insufficient
Remedy:
Check the water level, water flow rate, cleanliness, etc. If the coolant
pump is blocked: use a screwdriver - placed on the bushing - to turn
the coolant pump shaft
Cause:
Only on water-cooled machines: welding parameter 'Cool. unit ctrl' is
set to "OFF".
Remedy:
In the set-up menu, set welding parameter 'Cool. unit ctrl' to "Aut" or
"ON".
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