13
ECOTIG-160
TROUBLESHOOTING
Number
Fault
Failure Cause
Troubleshooting
1
Fan not working or
slower than usual
Faulty fan
Replace the fan
Wire broken
Replace/repair the wiring
2
No HF Arc when
pressing trigger
Torch switch failed
Change switch in the torch
Control PCB failed
Change control PCB
Wires in torch broken
Replace/repair wiring in
the torch
3
No gas output
No gas coming through
Check gas line
Control PCB failed
Change control PCB
Solenoid valve failed
Change solenoid valve
4
Indicator Light
Welder overheated
Wait 10 minutes, retry
Thermal relay failed
Replace thermal relay
Over/under voltage
protection (+/- 15%)
When normal voltage is
applied, wait 10 minutes
and retry
5
Current knob
problem
Potentiometer failed
Replace potentiometer
Control PCB failed
Replace control PCB
Potentiometer wiring
broken
Replace/repair wiring for
potentiometer
6
Poor arc
Wrong connection for
torch
Check operation
instructions and retry
Argon gas not pure
Use 99.99% Argon gas
Tungsten electrode or
needle damaged
Replace electrode or
needle with correct one
for application
7
Tripped electrics
Power supply fault
Check power supply
8
Tungsten melted
Tungsten electrode
contacted the work piece
Change tungsten
Incorrect tungsten used
Change tungsten to
correct one for application
9
Poor air protection
Argon gas not pure
Use 99.99% pure argon
Enough time for post-gas
and pre-flow
Clean workpiece before
welding
Change shielding gas flow
Increase nozzle size or
electrode length
