9 TROUBLESHOOTING
0463 730 001
- 30 -
© ESAB AB 2021
Type of fault
Corrective action
"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.
Intermittent gouging stops or contact
between carbon and metal lost.
• Air pressure too high. Reduce the air
pressure.
• Check whether the air pressure is set to
the recommended value. Check the
manual for the torch used.
Carbon deposit on the gouge metal.
• Air pressure too low. Turn on the air
before striking the arc; air should flow
between the electrode and the
workpiece.
• Check whether the air pressure is set to
the recommended value. Check the
manual for the torch used.
No arc during start or erratic arc during
gouging.
• Check whether the voltage is set to the
recommended value.
Intermittent arc action resulting in an irregular
groove surface or copper deposition on the
metal plate.
• Check whether the voltage is set to the
recommended value.
