No welding current
Mains switch is on, overtemperature is displayed
Overload; the duty cycle has been exceeded
Check duty cycle
Thermostatic automatic circuit breaker has been tripped
Wait until the power source automatically comes back on after the
end of the cooling phase
Limited supply of cooling air
Ensure accessibility to cooling air ducts
The fan in the power source is faulty
Contact After-Sales Service
Cause:
Remedy:
Cause:
Remedy:
Cause:
Remedy:
Cause:
Remedy:
No welding current
Mains switch is ON and indicators are lit up
Grounding (earthing) connection is incorrect
Check the grounding (earthing) connection for correct polarity
There is a break in the power cable in the welding torch
Replace the welding torch
Cause:
Remedy:
Cause:
Remedy:
Nothing happens when the torch trigger is pressed
Power source mains switch is ON and indicators are lit up
Only for welding torches with an external control plug: the control
plug is not plugged in
Plug in the control plug
Welding torch or welding torch control line is faulty
Replace the welding torch
Cause:
Remedy:
Cause:
Remedy:
No protective gas shield
All other functions are OK
Gas cylinder is empty
Change the gas cylinder
The gas pressure regulator is faulty
Replace the gas pressure regulator
Gas hose is not fitted or is damaged
Fit or change the gas hose
Welding torch is faulty
Change the welding torch
Gas solenoid valve is faulty
Contact After-Sales Service
Cause:
Remedy:
Cause:
Remedy:
Cause:
Remedy:
Cause:
Remedy:
Cause:
Remedy:
157
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