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Parts & Service: 020 8988 7400 / E-mail: [email protected] or [email protected]
TROUBLESHOOTING
DEFECT
CAUSES
SUGGESTIONS
Spark will not start
Bad clamp connection.
Inverter printed circuit is
defective.
Check clamp connection.
Contact your nearest
CLARKE dealer.
No output voltage Overheated machine (the
yellow LED should be on).
Wait for thermal cutout to
be reset.
Under-voltage/over-voltage
limits exceeded. Yellow LED
on and green LED flashing.
Check the mains distribution
system.
Wait for internal check of
input voltage. When this is
within normal limits, the
yellow LED will go out and
the green LED will stay on.
Internal relay has failed.
Contact your nearest
CLARKE dealer.
Inverter printed circuit is
defective.
Contact your nearest
CLARKE dealer.
Wrong output
current
Current selector control is
defective.
Contact your nearest
CLARKE dealer.
Low power supply voltage.
Check the mains distribution
system.
Porosity of welds
Acid electrode on steel
with high sulphur content.
Electrode oscillates too
much.
Workpieces are too far
apart.
Workpiece being welded is
cold.
Use basic electrode.
Move edges to be welded
closer together. Move slowly
at the beginning.
Cracks in weld
Material being welded is
dirty (e.g.oil, paint, rust,
oxides).
Not enough current.
Clean workpiece before
welding is an essential
method of achieving neat
weld beads.
Limited
penetration
Low current, high welding
rate, reversed polarity.
Electrode inclined in
position opposite to it's
movement.
Ensure operating para -
meters are regulated and
improve preparation of
work pieces.
