en
Disposal
16
DISPOSAL
Do not dispose of worn-out machines
or spent batteries (including recharge-
able batteries) in domestic waste!
The packaging, machine and accessories
are made from recyclable materials and
must be disposed of accordingly.
HELP IN CASE OF MALFUNCTIONS
CAUTION!
Disconnect the mains plug before any fault rectification work!
Malfunction Possible cause Rectification
Impeller blocked Clean the pump
Release the motor shaft of the impeller
with a screwdriver.
Overheating by dry running or wa-
ter that is too hot (thermal protection
switch has switched the pump off).
Check the water level on the suction
side.
Allow the conveying fluid to cool down.
Repairing or replacing the pump.
Pump drive motor
does not run
No mains voltage Check the fuses and power supply.
The suction line is not under the water
surface
Submerge the suction line in the water
by at least 30 cm.
Suction-side blockage Remove dirt from suction area.
Pressure line closed off Open the closing off units in the pres-
sure line.
Pump drawing air in the suction line Check all connections on the suction
line for leaks.
Replacing the seal.
Pump not drawing
water
Pump has been running dry Fill the pump housing with water.
Diaphragm is damaged. Have the diaphragm replaced by AL-
KO Service Department.
Pump switches
on and off too fre-
quently
Low air pressure in storage vessel Top the air up in the storage vessel.
(Set the diaphragm pre-pressure to 1.5
bar).
Pump does not
switch off if the
pressure line is
closed off.
Pump is drawing air, lack of water on
the suction side.
Switch the pump off and allow to cool.
Suction-side blockage Clean the suction area.
Replace the filter.
Suction head too great Reduce suction head.
Conveying volume
too low
Hose diameter too small Use a pressure hose with a larger dia-
meter.
HW 3000-3500 | HW 3000-3500 INOX | HW 3300 INOX
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