AL-KO HW F 1000 Mode D'emploi page 14

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? What is the possible reason?
Motor does not Thermal switch has switched off.
run.
No power.
System runs but Suction hose is not immersed in
does not pump the liquid to be pumped.
out liquid. Suction hose is blocked.
Pressure line is blocked.
Suction height is too great.
Pump sucks air
Pump is dry.
System is only Suction hose is blocked.
pumping out liquid Suction height is too great.
very slowly or Pressure hose diameter is too
weakly. small.
Pumping height is too great.
Pump does not Air pressure in reservoir is too
run reliably. low.
Pump fails to Water shortage inlet side,
switch off auto- Pump sucks in air
matically
If you are unable to remedy a malfunction, please call the AL-KO service centre nearest you.
What to do:
Wait until the thermal switch has automati-
cally switched the pump on again. Check
the temperature of the liquid. Have the
pump checked.
Have the power supply checked by a quali-
fied 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 all connection hoses and filter cover
for tightness.
Fill the pump with water.
Clear the blockage.
Lower suction height.
Attach a pressure hose with a larger diame-
ter.
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