ESAB AUTO K 600 - The wire feeds in inching but no feeding when the Torch Switch is pressed ON; When the Torch Switch is pressed, there is no wire feeding and output voltage is not available.; The current adjustment does not work.; Voltage adjustment does not work.

Fault Possible Cause Rectification
Fault of the Torch Switch or
disconnection of the control
cables.
Check for continuity using a
multimeter. Machine has to be
kept switched OFF during
continuity test
3. The wire feeds in
inching but no feeding
when the Torch
Switch is pressed
“ON”
Fault of main PCB / Crater PCB Replace main PCB / Crater
PCB
The Power Switch is in OFF
position
Turn the Power Switch ON.
The Power Fuses in the Supply
lines are blown.
Check the Switch Box’s fuse
and Power Fuse.
4. When the Torch
Switch is pressed,
there is no wire
feeding and output
voltage is not
available.
Failure of the Torch Switch or
disconnection of the control
cable.
Check for continuity using a
multimeter. Machine has to be
kept switched OFF during
continuity test
Fault of the Current Control
Potentiometer in Remote
Control Unit.
Check and replace
Fault of the Control PCB /
Crater PCB
Replace Control PCB / Crater
PCB
Fasten the plug socket firmly
5. The current
adjustment does not
work.
Disconnection of the Control
Cable in the Remote Control
Unit or imperfect contact.
Check for continuity using a
multimeter. Machine has to be
kept switched OFF during
continuity test
Fault of the Voltage Control
Potentiometer in Remote
Control Unit.
Check and replace
6. Voltage adjustment
does not work.
Fault of the Control PCB /
Crater PCB
Replace Control PCB / Crater
PCB
13