TROUBLESHOOTING
Anomalies
The device does not deliver any
current and the yellow thermal
fault light
illuminates
The display is on but the device
does not deliver any current.
When on, the user feels a
tingling sensation when touching
the machine.
Your unit does not weld
correctly.
When starting up, the display
indicates
Unstable arc
The tungsten electrode becomes
oxidised and tarnishes at the
end of welding.
The electrode melts
Causes
The thermal protection is on
The earth clamp or electrode
holder is not properly
connected to the unit.
The welding unit is not
correctly connected to the
earth.
Polarity error.
The voltage is not within the
range 230V +/- 15%
Fault
originates
from
tungsten electrode
Gas flow rate is too high
Working area
Fault originating from post-
gas, or the gas has been
interrupted.
Polarity error
Remedies
Wait for the end of the cooling
time, around 2 minutes. The
indicator lamp
turns off.
Check the connections.
Check the plug and the earth of
your electrical network.
Check the polarity advised on
the electrode packaging.
Have the electrical installation
checked.
the
Use a tungsten electrode with
the correct size
Use a well prepared tungsten
electrode
Reduce gas flow rate
Protect welding zone against air
flow
Increase post-gas duration
Check
and
tighten
connections.
electrode
has
before stopping the gas.
Check that the earth clamp is
connected to the +.
all
gas
Ensure
the
cooled
down
12/20