Lavor ETM Series, Instruction Manual

Page: 20 / 64

20
PROBLEMS CAUSES REMEDIES
The high-pressure cleaner
vibrates a lot and is noisy.
Water inlet filter (21) dirty. Follow the indications of the
“ROUTINE
MAINTENANCE”
paragraph.
Suction of air. Check the integrity of the suction circuit.
Not enough water supply or too
much priming depth.
Make sure the tap is completely open and that the
water mains flow or priming depth are in conformity
with the indications of the paragraph
“OPERATION -
PRELIMINARY ACTIVITIES”
fig. 5 - Operation G.
The high-pressure cleaner
fails to reach maximum
pressure.
Unloader/regulation valve set at
a lower value than the maximum
one.
Turn the knob (6) clockwise.
Nozzle holder head (11) in low-
pressure mode
(fig. 3 - Position A)
.
Refer to fig. 3 - Position B.
Worn nozzle. Replace the nozzle as indicated in the
“ROUTINE
MAINTENANCE”
paragraph.
Not enough water supply or too
much priming depth.
Make sure the tap is completely open and that the
water mains flow or priming depth are in conformity
with the indications of the paragraph
“OPERATION -
PRELIMINARY ACTIVITIES”
fig. 5 - Operation G.
Faulty operation of the BA type
water mains disconnector
See table in relative instruction manual.
Low detergent suction Nozzle holder head (11) not in low-
pressure mode (fig. 3 - Position B) .
Refer to
fig. 3 - Position A.
Detergent suction filter (16)
clogged.
Follow the indications of the
“ROUTINE
MAINTENANCE
” paragraph.
Detergent too viscous. Use a detergent recommended by the Manufacturer,
and dilute in accordance with plate instructions.
No water comes out of the
nozzle.
No water. Make sure the water mains tap is completely open
or the suction hose can prime.
Faulty operation of the
BA
type
water mains disconnector.
See table in relative instruction manual.
Too much suctioning depth. Make sure the priming depth is in conformity with
the indications of the paragraph
“OPERATION -
PRELIMINARY ACTIVITIES”
fig. 5 - Operation G .
Water nozzle clogged. Clean and/or replace the nozzle as indicated in the
“ROUTINE MAINTENANCE”
paragraph.
The high-pressure cleaner
stops during operation.
Tripping of system cutout device to
which the high-pressure cleaner is
connected (fuse, RCCB, etc.).
Reset the cutout device.
IN CASE THIS TRIPS AGAIN, DO NOT USE THE
HIGH-PRESSURE CLEANER AND CONTACT A
SKILLED TECHNICIAN.
Tripping of the ampere cut-out
protection device.
Follow the indications of the
“SAFETY DEVICES”
paragraph.
T h e h i g h - p r e s s u r e
cleaner starts again
spontaneously.
Leaking and/or dripping in the
delivery circuit.
Check the integrity of the delivery circuit.
When the master switch (1)
is turned, the motor hums
but does not start.
Electrical system and/or extension
inadequate.
Make sure the power line connection instructions
have been followed (see the
INSTRUCTION
MANUAL - SAFETY PRECAUTIONS
), with special
reference to the extension used.