Troubleshooting - ESAB Warrior 500i CC/CV Instruction Manual

8 TROUBLESHOOTING

8 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 overheating protection trips frequently.
Poor welding performance.
"Err" on display in open circuit mode
0463 341 131
Corrective action
• Check that the mains power supply switch
is turned on.
• Check that the mains, welding and return
cables are correctly connected.
• Check that the correct current value is
set.
• Check the mains power supply fuses.
• Check whether the overloading protection
has tripped (indicated on the front).
• Check the mains power supply fuses.
• Check that the return cable is correctly
fastened.
• Make sure that you are not exceeding the
rated data for the power source (i.e. that
the unit is not being overloaded).
• 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.
• Check the gas pressure in the equipment
connected to the power source.
• Check the mains power supply fuses.
• Check that the voltage on the voltage
selection label, on the rear of the power
source, is equal to the nominal mains
voltage.
• Restart the power source with the main
switch.
- 19 - © ESAB AB 2013