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Faults during welding
Fault
Fault LED [10] flashes System error
Fault LED [10]is lit
constantly
Displays remain dark
No welding current
The electric arc does
not strike
No shielding gas
Insufficient shielding
gas
Pores in weld material
Seam "boils"
(unsteady arc)
TIG electrode melts
Error messages
Possible cause
CDF exceeded, machine is overheating
Mains fuse defective
Neutral conductor, mains phase missing
Ground cable not connected or defective Check the ground cable and replace, if necessary
Electrode holder or welding torch not
connected or defective
No or bad ground contact
Wrong electrode diameter
Welding current set too low
Tungsten electrode dirty or incorrectly
ground
Gas flow rate set incorrectly
Gas cylinder empty
Pressure reducer defective
Gas valve on welding torch not open or
defective
Welding torch leaking
Gas hose not securely connected
Pressure reducer incorrectly set or
defective
Welding torch leaking
Gas nozzle not securely connected
Torch head defective
Workpiece soiled with grease, rust, oil,
etc.
Draughts
No gas supply
Wrong gas
Welding current set too high for electrode
diameter
Poles reversed and TIG torch connected
to +ve pole [4]
Remedy
Turn off the device. If all indicators have gone out,
wait at least 1 more minute in switched-off state.
Switch the machine on again. If the fault persists,
contact Service
Leave the machine switched on and allow to cool
Replace the fuse
Check mains cable/mains extension cable
Check the electrode holder or welding torch and
replace, if necessary
Ensure earthing contact is good
Select the right electrode diameter
Set welding current higher
Grind correctly or replace the electrode, if necessary
Set gas flow rate correctly
Replace the gas cylinder
Check, replace if necessary
Check, replace if necessary
Check, replace if necessary
Connect the gas hose securely
Check, replace if necessary
Check, replace if necessary
Connect the gas nozzle securely
Check, replace if necessary
Clean
Shield the workplace
Check
Use the correct gas
Set the correct welding current
Connect TIG torch to the -ve pole [3]
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