ESAB Warrior Feed 404HD - Troubleshooting

7 TROUBLESHOOTING
0463 341 231
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© ESAB AB 2020
7 TROUBLESHOOTING
Try these recommended checks and inspections before sending for an authorized service
technician.
Type of fault Corrective action
No arc. • Check that the main 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 electrical power supply
fuses.
The welding current is interrupted during
welding.
• Check whether the overloading
protection has tripped (indicated on the
front).
• Check the electrical power supply
fuses.
• Check that the return cable is correctly
fastened.
The overheating protection trips frequently. • 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 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 electrical power supply
fuses.
• Check the gas pressure in the
equipment connected to the power
source.
"Err" on display in open circuit mode • Check the electrical 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.