Troubleshooting - Comet K 250 STATIC 10.150 M Bedienungs- Und Wartungsanleitung

TROUBLESHOOTING

PROBLEMS
When the master
switch (1) is moved to
position "1", machine
does not start.
The machine vibrates a
lot and is noisy.
The machine fails
to reach maximum
pressure.
24
CAUSES
Tripping of the system cut-out
device (fuse, RCCB, etc.) to which
the machine is connected.
The plug is not properly fitted. Disconnect the plug and fit it back
Water inlet filter (30) dirty.
Suction of air.
Not enough water supply or too
much priming depth.
Regulation valve set at a lower
value than the maximum one.
Nozzle holder head (15) in
low-pressure mode (Fig. 3 -
Position "a").
Worn nozzle.
Not enough water supply or too
much priming depth.
Faulty operation of the backflow
preventer device (if any)
REMEDIES
Reset the cut-out device.
In case this trips again, do not
use the machine and contact a
Specialized Technician.
correctly.
Follow the indications of the "ROUTINE
MAINTENANCE" paragraph.
Check the integrity of the suction circuit.
Make sure the tap is completely open
and that the water mains flow or
priming depth are in conformity with
the indications of the "SPECIFICATIONS
AND TECHNICAL DATA" paragraph.
Turn the knob (6) clockwise.
Refer to Fig. 3 - Position "b".
Replace the nozzle as indicated in the
"ROUTINE MAINTENANCE" paragraph.
Make sure the tap is completely open
and that the water mains flow or
priming depth are in conformity with
the indications of the "SPECIFICATIONS
AND TECHNICAL DATA" paragraph.
See relative instruction manual.
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