Troubleshooting - ESAB Caddy Arc 251i Instruction Manual

7 TROUBLESHOOTING

7 TROUBLESHOOTING
Try these recommended checks and inspections before sending for an authorized service
technician.
Type of fault
No arc.
The welding current is
interrupted during welding.
The thermal overload
protection trips frequently.
Poor welding performance.
0460 324 101
Corrective actions
• 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.
• Check the mains power supply fuses.
• Check whether the thermal overload protections have
tripped (a fault code is displayed on the control panel).
• Check the mains power supply fuses.
• Make sure that you are not exceeding the rated data for
the welding power source (i.e. that the unit is not being
overloaded).
• Check that the welding power source is not clogged with
dirt.
• Check that the welding current supply and return cables
are correctly connected.
• Check that the correct current value is set.
• Check that the correct electrodes are being used.
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