7 TROUBLESHOOTING
0440 001 001
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© ESAB AB 2020
7 TROUBLESHOOTING
Try these recommended checks and inspections before sending for an authorised service
technican.
Type of fault Actions
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 correct current value is set.
Welding current is
interrupted during welding
• Check whether the overheating protection has tripped.
(Indicated by error E4 on the display.)
• Check the main power supply fuses.
The overheating protection
trips frequently
• Check to see whether the air inlet or outlet 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 current supply and return cables
are correctly connected.
• Check the gas supply.
• Check that the correct current value is set.
• Check that the correct welding wires are being used.
• Check if proper rolls are applied and the pressure of the
wire feeder's pressure rollers is properly set.
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