product has been specifically designed to
make the replacement of these parts as
convenient as possible.
THE MAINTENANCE OF THIS PRODUCT
MUST BE COMPLETED BY A TECHNICALLY
COMPETENT PERSON. IF IN ANY DOUBT
PLEASE CONSULT THE RETAILER WHERE THE
PRODUCT WAS PURCHASED.
ALWAYS UNPLUG OR DISCONNECT
THE PUMP FROM THE ELECTRICITY
SUPPLY BEFORE STARTING
MAINTENANCE.
1. The diffusion of air from air stones will
deteriorate over time. In order to maximise
the efficiency of air output, air stones
should be replaced every year.
2. If rubber o-rings and the diaphragm are
replaced every year, the efficiency of the
pump will be maintained at a consistently
high level. A spares kit (1377) is available
from Hozelock Cyprio.
Tools Needed
- Medium sized Phillips screwdriver.
- A pair of Pliers
Replacing the Inlet Foam
1. Remove the grommet from the air inlet
cover (See Fig 8).
2. Remove screw from the air inlet cover
(See Fig 9).
3. Remove the air inlet cover (See Fig 10).
4. Remove and replace the filter (See Fig
11).
5. Replace the air inlet cover, screw and
grommet.
Replacing the Outlet Foams
1. Remove the 4 screws from the base of
the air pump (See Fig 12) and remove
the lid (See Fig 13).
2. Remove the six screws from the motor
base and remove the two main motor
brackets (See Fig 14). Do not remove the
earth cable screw.
3. Carefully remove the cable grommet (See
Fig 15) and lift the motor unit from the
base moulding (See Fig 16).
4. Replace the foams (See Fig 17).
5. Ensure seals are in place before
reassembling the motor unit to the base
moulding (See Fig 16).
6. Ensure cable grommet is located correctly
in the base moulding.
7. Reassemble the pump lid ensuring that
the seal is in place between the lid and
base (See Fig 13).
Replacing the Flapper Valves
1. Remove the 4 screws from the base of
the air pump and remove the lid (See Fig
12/13).
2. Locate the rubber L-tube. Remove the
hose clip (closest to air chamber cover)
from hose band and detach the L-tube
from air chamber cover (See Fig 18).
3. Remove the 4 screws from the air
chamber cover; gently pull the cover
away from the pump (See Fig 19/20).
4. Remove the securing screw and cover
plate from the air chamber housing (See
Fig 21).
5. Remove the rubber inlet and outlet
covers; care should be taken not to
damage these as they act as seals (See
Fig 22).
6. Pull out the valves, when replacing the
new valves ensure they are fitted from
the same direction (See Fig 23).
7. Replace the valves by passing the spigot
through the hole and then pulling the
spigot from the other side until the lug
passes through the hole locking the
valve in place (See Fig 24). Cut the spigot
back after the valve is securely in place.
8. If the diaphragms are to be replaced then
move to step 5 in the following section.
9. Reassemble the product follow the steps
in reverse order from step 7. Ensure that
the rubber seal is in place between the
lid and the base.
Replacing the Diaphragm
1. Remove the 4 screws from the base of
the air pump and remove the lid.
2. Locate the rubber L-tube. Remove the
hose clip (closest to the air chamber
cover) from the hose band and detach
the L-tube from the air chamber cover
(See Fig 18).
3. Remove the 4 screws from the air
chamber cover; gently pull the cover
away from the pump (See Fig 19/20).
4. Remove the centre nut, washers (See Fig
25).
5. Remove and replace the diaphragm
assembly (See Fig 26).
6. Replace the washers and tighten the
centre nut.
7. Reassemble the product following the
steps in reverse order from step 5.
FAULT FINDING
ALWAYS UNPLUG OR DISCONNECT THE
PUMP FROM THE ELECTRICITY SUPPLY
BEFORE STARTING MAINTENANCE.
Increased noise / Low air output
1. Check for restrictions to the airflow:
- Check the air tube isn’t kinked or
trapped.
- Check there isn’t an obstacle on top of
the air tube.
- Check there isn’t a piece of dirt
obstructing the air tube.
- Check the one-way valve in the air
tube is operating effectively.
- Check that the air stone is in good
condition and whether it needs
replacing.
- Check to see whether the inlet/outlet
foams, rubber seals, flapper valves or
diaphragm need replacing
2. If only using one air stone at a depth of
3m, the backpressure may be causing
the noise. Open one of the other
manifold outlets to bleed off some air
to relieve the backpressure.
Alternatively add an extra air stone.
3. The air stone should not be placed at a
depth more than 3m.
No air output
1. Check power is on and the electrical
installation is correct.
2. Check the metal outlet manifold
valves are not all closed
3. The pump may have over-heated
triggering the automatic thermal
overload switch. Turn off the power at
the mains supply to the pump and
check for the cause including
diaphragm, flapper valves and inlet/
outlet foams.
If you need further advice either return
the faulty product to the point of
purchase or contact Hozelock Cyprio
Consumer Services on 0870 850 1959
SPARE PARTS
Contact the Consumer Services Helpline on
0870 850 1959
HOZELOCK CYPRIO 2-YEAR
GUARANTEE
If this pump, excluding the Diaphragm,
Flapper Valves, Inlet and Outlet foams and
o-rings, becomes unserviceable within 2
years of the date of purchase it will be
repaired or replaced at our option free of
charge, unless in our opinion it has been
damaged or misused.
Liability is not accepted for damage due to
accident, improper installation or use.
Liability is limited to replacement of a faulty
pump. This guarantee is not transferable. It
does not affect your statutory rights.
To obtain the benefits of the guarantee,
firstly contact Hozelock Cyprio Consumer
Services who may request that the pump is
sent along with proof of purchase directly
to the address below.
Damage caused by running the air stone at
a depth greater than 3m invalidates the
Guarantee.
SPARE PART NO.
Air Pump Spares Kit 1377
Diaphragm (Membrane) Z12701
Metal Manifold Z12710
Air Stone and Air Tube Kit Z12720