DEFECT
CAUSE
SOLUTION
The machine suddenly sto-
ps working after prolonged
use
Arc off
The machine has overheated
due to excessive use and the
thermal protection has inter-
vened.
Leave the machine to cool until
the warning message disap-
pears.
Poor contact between the earth
clamp and the workpiece.
Short circuit between the con-
tact nozzle and the gas tube.
Tighten the clamp and
check again.
Clean and replace contact
nozzle and wire-feeder tip.
Porous welding seam
Scarce fusion
Lateral incisions
Incorrect tilt angle of torch.
The distance between the tor-
ch and the workpiece must be
5-10mm; the tilt angle must be
no less than 60 degrees from
the workpiece.
Damp workpiece
Dry with a hot air pistol or
other means.
Welding arc is too long
Brusque torch movements
Shorten the arc
Clean
Rusty material
Clean
Welding speed is too high
Reduce welding speed
13. TROUBLESHOOTING
Below are a list of some of the most common problems that may arise, with the relative
solutions.
Network error
loss of phase or more phases of
Check the connection to the
power supply and check that
the fuses are intact
10
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