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8 TROUBLESHOOTING
Type of fault
TIG (GTAW) welding
problems
No power/No arc
The overheating protection
trips frequently.
0463 486 001
Corrective action
•
Make sure the TIG torch is connected to the power
source: Connect the TIG torch to the negative [-] welding
terminal. Connect the welding ground cable to the positive
[+] welding terminal.
•
Use only 100% Argon gas for TIG welding.
•
Make sure the regulator/flow meter is connected to the
gas bottle.
•
Make sure the gas pipe for the TIG torch is connected to
the gas outlet connector (M12) on the front of the power
source.
•
Make sure the work clamp has proper contact with the
work piece.
•
Make sure the gas bottle is opened and check the gas
flow rate on the regulator/flow meter. The flow rate should
be between 4.72–11.80 l/min (1.25–3.12 gpm).
•
Make sure the power source is turned on and TIG welding
process is selected.
•
Make sure all connections are tight and leak-free.
•
Check that the input power supply switch is turned on.
•
Check if a temperature fault is shown on display.
•
Check if system breaker is tripped.
•
Check that the input power, welding and return cables are
correctly connected.
•
Check that the correct current value is set.
•
Check the input power supply fuses.
•
Make sure that you are not exceeding the recommended
duty cycle for the weld current you are using.
See section "Duty cycle" in the OPERATION chapter.
•
Make sure the air inlets or outlets are not clogged.
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© ESAB AB 2021
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