7 TROUBLESHOOTING
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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.
• Check to see whether the MCB has tripped.
Welding current is
interrupted during welding
• Check whether the thermal overload trip has operated
(indicated by the orange lamp on the front).
• Check the main power supply fuses.
Thermal overload trips
operate frequently
• Check to see whether the air inlets/outlets 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 welding wires are being used.
• Check the main power supply fuses.
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