31
PROBLEMS CAUSES REMEDIES
The electric motor fails
to start or stops during
operation.
One of the safety devices has triggered
of the plant to which the machine
that integrates the motor pump is
connected (fuse, differential switch,
etc.).
Reset the safety device.
If it triggers again, do not use the machine and
contact a Skilled Technician.
Blown fuse. Replace the fuse.
Follow the instructions in the
“saFety deVIces”
paragraph.
The pump does not prime. Suction of air. Check the integrity of the suction circuit.
Delivery circuit under pressure. Reset the pressure of the delivery circuit.
The pump fails to reach
max. pressure.
Pressure adjusting device not set to
maximum pressure.
Adjust the device to set the required pressure.
Not enough water supply or priming
too deep.
Make sure the water supply ow rate or priming
depth is in compliance with the indications
in the
“specIFIcatIons and technIcaL data”
paragraph.
Suction circuit blockages. Check the suction circuit (especially make sure
the suction lter is clean).
Irregular pressure and
ow rate (pulsating).
Air suction. Check the integrity of the suction circuit.
Suction lter dirty. Clean the lter.
Not enough water supply or priming
too deep.
Make sure the water supply ow rate or priming
depth is in compliance with the indications
in the
“specIFIcatIons and technIcaL data”
paragraph.
The motor pump has not completed
priming.
Prime the pump according to the indications
of the
“opeRatIon”
paragraph.
The motor pump starts
and stops continuously.
Leak in the delivery circuit and/or from
a device.
Check the delivery circuit and the devices.
Too much noise. Suction circuit blockages. Check the suction circuit (especially make sure
the suction lter is clean).
Water supply temperature too high. Keep to the temperatures indicated in the
“specIFIcatIons and technIcaL data”
paragraph.
PART TWO
(for Skilled Technicians only)
WARNING
• This part of the manual is dedicated to Skilled Technicians and is not intended for users of the machine in
which the motor pump is integrated.
UNPACKING
WARNING
• During unpacking, always wear gloves and protective goggles, to prevent injuring hands and eyes.
EN
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