AL-KO HWA 60005 PREMIUM - Инструкция по эксплуатации - Страница 21

Troubleshooting

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21

TROUBLESHOOTING

CAUTION!

Disconnect  the  mains  plug  before  any  fault  rectification  work.  Faults  in  the  electrical  system

must be rectified by a qualified electrician.

Malfunction

Cause

Rectification

Pump drive motor does

not run.

No mains power.

Check fuses and power supply.

CHECK
SUCTION SI

      0.0 BAR

Pressure and through-flow

are deviating from normal

values, but pump is still run-

ning.

Message appears after 20 s. Pump at-

tempts to rectify fault itself for 90 s.

No action required.

If fault persists after 90 s, pump switches off

as dry-run protection.

Pump is switched off as dry-

run protection.

Fault on suction side.

Rectify fault and press SET. Pump then

starts up again. Attention: hot water when

restart occurs.

Leak on suction side.

Check suction valve and suction hose.

Leak on filter bowl.

Check filter bowl seal, retighten filter bowl.

Leak on filter chamber drain

screw.

Check drain screw seal, retighten drain

screw.

End of hose not in water,

water reservoir (e.g. cistern

or borehole) empty. Pump

drawing in air.

Suction line must always be at least 30 cm

under the surface of the water.

Filter heavily contaminated.

Clean filter.

Suction line blockage

Remove dirt from the suction area.

ALARM
SUCTION SI

      0.0 BAR

Flow rate less than 300 l/h.

Increase flow rate.

ALARM
CHECK PRE

      1.5 BAR

Pump switches on and off

several times although no

water is being drawn off.

➯

Pump  is  switched  off  as

protection  against  over-

heating.

Fault on pressure side, e.g. leak.

Even small leaks on water taps and toilets

can cause the system pressure to drop.

Check the pressure line and draw-off points

for leaks.

Check and clean the check valve (18) in the

filter chamber.

Rectify the fault and confirm with SET -

pump then restarts.

Attention: hot water when restart occurs!

ADVICE

If the faults cannot be rectified, please contact our customer service department.