Fault Tracing - ESAB Warrior 400i CC Manual De Instrucciones

7 FAULT TRACING

7 FAULT TRACING
Try these recommended checks and inspections before sending for an authorized service
technician.
Type of fault
No arc.
The welding current is interruppted during
welding.
The overheating protection trips frequently.
Poor welding performance.
"Err" on display in open circuit mode
0221323
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 deployed (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.
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© ESAB AB 2014