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