9
GB
MAINTENANCE AND CLEANING
It is absolutely essential to prevent any risk of the pump freezing. In the event of freezing temperatures,
remove the pump from the liquid, empty it and keep it in a place where it cannot freeze.
The pump must be disconnected from the mains before performing any cleaning operation.
The pump is maintenance free.
5.
TROUBLESHOOTING
Before taking any troubleshooting action, disconnect the pump from the power supply.
If there is any damage to the power cord or pump, any necessary repairs or replacements must
be handled by the manufacturer or his authorized customer support service, or by an equally-
qualified party, in order to prevent all risks.
Multi-impeller self priming Surface pumps and Boosters with tank
Fault
Cause
Solution
The pump does not
turn on
1) no power.
2) shaft blocked
1) check if power is supplied to the
socket and that the plug is correctly
inserted.
2) remove the plug from the power
socket and insert a screwdriver into
the notch on the shaft (from the
cooling fan side) and unblock it by
turning the screwdriver.
The pump turns but
does
not
deliver
water
1) the air inside the pump has not been
completely bled. Pump casing without
water.
2) entry of air from the suction pipe.
3) - the suction valve is not submerged in
water
- suction valve blocked
- the maximum suction depth has been
exceeded
1) stop the pump, unscrew the
delivery pipe, shake the pump and
suction hose to remove any air
bubbles. Top up with water, connect
the hose ensuring it is correctly sealed
and start the pump again.
2) check that the joints of the suction
hose have been performed correctly.
Make sure there are no counterslopes,
traps, goosenecks or constriction on
the suction pipe and that the foot valve
is not blocked.
3) - place the suction valve in water
- clean the foot valve
- clean the suction basket
- check the suction depth.
The pump stops
due to overheating
caused
by
the
opening
of
the
overheating thermal
protection
1) The power supply does not conform to
that on the rating plate of the motor
(voltage too high or too low).
2) A solid object has blocked the impeller.
3) The pump has been operating with water
that is too hot.
4) The pump ran dry or ran with the delivery
tap closed for more than 10 minutes.
1)-4) remove the plug, remove the
cause of the overheating, wait for
the motor to cool and start it again.
