10
Troubleshooting table
WARNING:
Any internal inspections or repairs are only to be done by qualified personnel!
IMPORTANT:
Remember to disconnect the mains power supply and wait for the internal capacitors to discharge (about 2 min
-
utes) before starting to check and repair the welding power source if necessary.
Defect
Solution
The welding welding power
source does not switch on,
control panel switched off.
•
Check that the welding welding power source is installed correctly and that the
mains supply has sufficient power to supply the welding welding power source.
•
Check the switch, cable and plug on the power supply line and replace them if necessary.
•
Check, and if necessary replace, the digital interface PCB or the control PCB.
Line fuses fused
“instantaneously”.
•
Check that the welding welding power source is installed correctly.
•
Check and if necessary replace the motor, transformer, or rectifier.
Line fuses fused after
a work period.
•
Check that you have fitted line fuses of adequate absorption capacity.
Welding welding power
source on, control panel
on, fan stopped.
•
Check the wiring that powers the fans.
•
Check that there are no mechanical impediments blocking the fans.
•
Check and if necessary replace the digital interface PCB.
Welding welding power
source on, display does
not show correct values.
•
See the error codes and signals.
•
Check the wiring that powers the various boards.
•
Check, and if necessary replace, the digital interface PCB or the control PCB.
No gas coming out of the torch.
•
Check and if necessary replace the solenoid valve or gas hose.
•
Check the wiring that powers the gas solenoid valve.
•
Check, and if necessary replace, the digital interface PCB or the control PCB.
The wire feed motor does not
work during MIG-MAG welding.
•
Check the wiring that powers the wire feed motor.
•
Check that there are no mechanical impediments blocking the motor.
•
Check that the motor is working correctly and if necessary replace it.
•
Check and if necessary replace the digital interface PCB.
Welding current insufficient
or not constant.
•
Check the power supply line.
•
Check and if necessary replace the wires (section or length inadequate).
•
Check the line voltage using a voltmeter.
Arc ignition difficult, the arc
switches off immediately
after ignition during MIG-
MAG welding.
•
Use the control panel manual to make sure you have set
the various welding parameters correctly.
•
Check compatibility of the torch and the wire used.
•
Check that the torch and all its components are working correctly
and replace them if necessary (e.g. worn components).
•
Check and if necessary replace the digital interface PCB.
The wire sticks to the
workpiece to be welded.
•
Check that there are no mechanical impediments blocking correct unwinding of the wire.
•
Check that the motor is working correctly and if necessary replace it.
•
Check and if necessary replace the digital interface PCB.
