37
For the maintenance or replacement of torch components,
electrode holders and/or earth cables:
Check the temperature of the component and
make sure that they are not overheated.
Always use gloves in compliance with the safety
standards.
Use suitable wrenches and tools.
Failure to carry out the above maintenance will invalidate all
warranties and exempt the manufacturer from any liability.
6 TROUBLESHOOTING
The repair or replacement of any parts in the
system must be carried out only by qualified
personnel.
The repair or replacement of any parts in the system by unau-
thorised personnel will invalidate the product warranty.
The system must not be modified in any way.
The manufacturer disclaims any responsibility if the user
fails to follow these instructions.
The system fails to come on (green LED off)
Cause
No mains voltage at the socket.
Solution
Check and repair the electrical system as needed.
Use qualified personnel only.
Cause
Faulty plug or cable.
Solution
Replace the faulty component.
Contact the nearest service centre to have the sys-
tem repaired.
Cause Line
fuse
blown.
Solution
Replace the faulty component.
Cause
Faulty on/off switch.
Solution
Replace the faulty component.
Contact the nearest service centre to have the sys-
tem repaired.
Cause Faulty
electronics.
Solution
Contact the nearest service centre to have the sys-
tem repaired.
No output power (the system does not weld)
Cause
Faulty torch trigger button.
Solution
Replace the faulty component.
Contact the nearest service centre to have the sys-
tem repaired.
Cause
The system has overheated (temperature alarm -
yellow LED on).
Solution
Wait for the system to cool down without switching
it off.
Cause
Incorrect earth connection.
Solution
Earth the system correctly.
Read the paragraph “Installation “.
Cause
Mains voltage out of range (yellow LED on).
Solution Bring the mains voltage within the power source
admissible range.
Connect the system correctly.
Read the paragraph "Connections ".
Cause Faulty
electronics.
Solution
Contact the nearest service centre to have the sys-
tem repaired.
Incorrect output power
Cause
Incorrect selection in the welding process or faulty
selector switch.
Solution
Select the welding process correctly.
Replace the faulty component.
Contact the nearest service centre to have the sys-
tem repaired.
Cause
System parameters or functions set incorrectly.
Solution
Reset the system and the welding parameters.
Cause Faulty
electronics.
Solution
Contact the nearest service centre to have the sys-
tem repaired.
Arc instability
Cause
Insufficient shielding gas.
Solution
Adjust the gas flow.
Check that the diffuser and the gas nozzle of the
torch are in good condition.
Cause
Humidity in the welding gas.
Solution
Always use quality materials and products.
Ensure the gas supply system is always in perfect
condition.
Cause Incorrect
welding
parameters.
Solution
Check the welding system carefully.
Contact the nearest service centre to have the sys-
tem repaired.
Excessive spatter
Cause Incorrect
arc
length.
Solution
Decrease the distance between the electrode and
the piece.
Cause Incorrect
welding
parameters.
Solution
Decrease the welding voltage.
Insufficient penetration
Cause Incorrect
welding
mode.
Solution
Decrease the welding travel speed.
Cause Incorrect
welding
parameters.
Solution
Increase the welding current.
Cause Incorrect
electrode.
Solution
Use a smaller diameter electrode.
Cause Incorrect
edge
preparation.
Solution
Increase the chamfering.
Cause Incorrect
earth
connection.
Solution
Earth the system correctly
Read the paragraph “Installation “.
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