ESAB Aristo Mig 4001i, Instruction Manual, Page: 16 / 26

7 TROUBLESHOOTING
0460 740 001 - 16 - © ESAB AB 2017
7 TROUBLESHOOTING
Try these recommended checks and inspections before sending for an authorized service
technician.
Type of fault Action
No arc. • Check that the mains power supply
switch is turned on.
• Check that the welding and return cables
are correctly connected.
• Check that the correct current value is
set.
• Check the mains power supply fuses.
The welding current is interrupted during
welding. • Check whether the overloading protection
has deployed (indicated in the control
panel).
• Check the mains power supply fuses.
The overheating protection trips frequently. • Check to see whether the dust filter is
clogged.
• Make sure that you are not exceeding the
rated data for the power source (i.e. that
the unit is not being overloaded).
Poor welding performance. • Check that the welding and return cables
are correctly connected.
• Check that the correct current value is
set.
• Check that the correct wire or electrode is
used.
• Check the mains power supply fuses.