7 TROUBLESHOOTING
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© ESAB AB 2018
7
TROUBLESHOOTING
Try these recommended checks and inspections before sending for an authorised service
technician.
Type of fault
Action
No arc.
• Check that the mains power supply
switch is turned on.
• Check that the welding current supply
and return cables are correctly
connected.
• Check that the correct current value is
set.
Welding current is interrupted during welding. • Check whether the thermal overload
trips have operated (indicated by the
orange lamp on the front panel).
• Check the main power supply fuses.
The thermal overload trips operate frequently. • Check to see whether the air filters are
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 current supply
and return cables are correctly
connected.
• Check that the correct current value is
set.
• Check that the correct wire is being
used.
• Check the main power supply fuses.