Fronius Robacta Bedienungsanleitung Seite 65

Troubleshooting
Troubleshooting
No welding current
Mains switch is on, indicators on the power source are lit, shielding gas availab-
leNetzschalter eingeschaltet, Anzeigen an der Stromquelle leuchten, Schutzgas
vorhanden
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No shielding gas
All other functions are OK
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Poor welding properties
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Incorrect earth (ground) connection
Check the earth (ground) connection and clamp for correct polarity
There is a break in the current cable in the welding torch
Replace the torch
The gas cylinder is empty
Change the gas cylinder
Gas pressure regulator is faulty
Change the gas pressure regulator
The gas hose is not connected, or is damaged or kinked
Connect/replace the gas hose, or straighten out kinks
The welding torch is defective
Replace welding torch
Gas solenoid valve is defective
Replace gas solenoid valve
Incorrect welding parameters
Check the settings
Poor connection to earth (ground)
Ensure good contact to workpiece
Not enough shielding gas, or none at all
Check the pressure regulator, gas hose, gas solenoid valve and torch
gas connection.
Welding torch is leaking
Replace welding torch
Contact tube is too large or worn out
Change the contact tube
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