5 MAINTENANCE
Routine maintenance must be carried out on the
system according to the manufacturer's instruc-
tions.
Any maintenance operation must be performed by qualified
personnel only.
When the equipment is working, all the access and operating
doors and covers must be closed and locked.
Unauthorized changes to the system are strictly forbidden.
Prevent conductive dust from accumulating near the louvers
and over them.
Disconnect the power supply before every opera-
tion!
Carry out the following periodic checks on the
power source:
- Clean the power source inside by means of
low-pressure compressed air and soft bristle
brushes.
- Check the electric connections and all the con-
nection cables.
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.
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Cause
Solution
Cause
Solution
Cause
Solution
No output power (the system does not weld)
Cause
Solution
Cause
Solution
Cause
Solution
Cause
Solution
Cause
Solution
Incorrect output power
Cause
Solution
Cause
Solution
Cause
Solution
Cause
Solution
Cause
Solution
Arc instability
Cause
Solution
Line fuse blown.
Replace the faulty component.
Faulty on/off switch.
Replace the faulty component.
Contact the nearest service centre to have the sys-
tem repaired.
Faulty electronics.
Contact the nearest service centre to have the sys-
tem repaired.
Faulty torch trigger button.
Replace the faulty component.
Contact the nearest service centre to have the sys-
tem repaired.
The system has overheated (temperature alarm -
yellow LED on).
Wait for the system to cool down without switching
it off.
Incorrect earth connection.
Earth the system correctly.
Read the paragraph "Installation ".
Mains voltage out of range (yellow LED on).
Bring the mains voltage within the power source
admissible range.
Connect the system correctly.
Read the paragraph "Connections ".
Faulty electronics.
Contact the nearest service centre to have the sys-
tem repaired.
Incorrect selection in the welding process or faulty
selector switch.
Select the welding process correctly.
System parameters or functions set incorrectly.
Reset the system and the welding parameters.
Faulty potentiometer/encoder for the adjustment
of the welding current.
Replace the faulty component.
Contact the nearest service centre to have the sys-
tem repaired.
Mains voltage out of range
Connect the system correctly.
Read the paragraph "Connections ".
Faulty electronics.
Contact the nearest service centre to have the sys-
tem repaired.
Insufficient shielding gas.
Adjust the gas flow.
Check that the diffuser and the gas nozzle of the
torch are in good condition.