AL-KO Garden + Hobby HW 604 Información Y Manuales Y Servicio página 13

Malfunctions
Before you attempt to remedy any malfunction of your domestic water system, pull the plug
!
to prevent injury or death due to electrocution!
What is wrong?
Motor does not run.
System runs but does
not pump out liquid.
System is only
pumping out liquid
very slowly or weakly.
Pump does not run
reliably.
Pump fails to switch
off automatically
If you are unable to remedy a malfunction, please call the AL-KO service centre nearest you.
What is the possible reason?
Impeller is blocked.
Thermal switch has switched off.
No power.
Suction hose is not immersed in the
liquid to be pumped.
Suction hose is blocked.
Pressure line is blocked.
Suction height is too great.
Air is trapped in the suction hose.
Pump is dry.
Suction hose is blocked.
Suction height is too great.
Pressure hose diametre is too
small.
Pumping height is too great.
Air pressure in reservoir is too low.
Water shortage inlet side,
Pump sucks in air
What to do:
Clean the pump.
Wait until the thermal switch has
automatically switched the pump on
again. Check the temperature of the
liquid. Have the pump checked.
Have the power supply checked by a
qualified electrician.
Make sure that the suction hose is at
least 30 cm beneath the surface.
DANGER!
Risk of injury due to hot water!
Clear blockage in suction hose.
DANGER!
Risk of injury due to hot water!
Clear blockage in pressure line.
Lower suction height.
Check for leaks in the suction hose.
Fill the pump with water.
Clear the blockage.
Lower suction height.
Attach a pressure hose with a larger
diametre.
Lower pumping height.
Check the air pressure in the reservoir
at the valve (5) and correct to about
1.5 bar if necessary.
Unplug the pump, allow to cool down
if necessary
GB 5