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11 TROUBLE SHOOTING
Abnormality
Power lamp does not turn on
if power switch is turn on.Also,
cooling fan does not rotate.
Water/Temp./Input overvoltage
warning lamp lights.
Input current warning lamp turn
on
The output side overvoltage
warning lamp is Iit.
High frequency and arc does
not generate.
Arc is not generated while high
voltage is
generated.
Arc
is
not
the time of stick welding
Shielding gas does not flow.
Shielding
gas
and does not stop.
N.BContact manufacture's agent if any abnormality occurs which does not correspond to
the above Troubleshooting Guide.
Checking Point
· Power supply is not connected.
· Fuse in switch box is blown.
· Power fuse(5A) is blown.
· Fuse 2 or 3 is blown.Contact manufacture's agent
· Shortage of the torch cooling water.
· Machine is operating at a current and duty
· Supply voltage is not suitable.
· Supply voltage fluctuates extremely.
· Contact man facture's agent in cases other
· The output cable at the time
· Welding method control switch is set to stick
· The torch switch plug socket is not connected.
· Base metal side cable is not connected or
· Distance between torch electrode and base metal
· The welding method control switch is not set
generated
at
· The torch selector switch is not set to "Air".
· The hose is kinked.
· Gas valve is malfunctioning.
keeps flowing
· Gas valve is malfunctioning.
because circuit components may be damaged.
cycle above the rated value.
than the above because of possible
main circuit trouble.
welding or MIX TIG is coiled
small.
(Lay
the
output side cable in
an uncoiled condition as much as
practicable or coil in large loops.)
welding.
connection is not effective.
is
too long.
to "Stick welding".
21
of
AC TIG
too
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