Caution
To avoid risks, all repairs and replacement of spare parts may only be carried out by the
authorised customer service personnel.
Prior to all work on the appliance, switch off the appliance and pull the power plug.
Fault
Pump runs but does
not transport
Pump does not run or
suddenly comes to a
standstill during oper-
ations
Troubleshooting
Cause
Air in the pump
Suction pipe blocked
Pre-filter is dirty
Suction hose or connec-
tion adapter not screwed
in correctly or complete-
ly.
Power supply interrupt-
ed
Pre-filter is dirty
The appliance is in the
automatic mode.
Pressure in the system >
1.3 bar.
Remedy
see Chapter "Preparation" Fig. A to D and
Chapter "Operation"
Switch off the pump, pull the mains plug
and clean the intake area.
Switch off the pump, pull the mains plug,
allow the pump to cool down, clean intake
area, prevent dry running.
Remove the pre-filter and the check valve
and clean it under running water, flush dirt
residues from the bottom of the filler neck
through the filler hole if necessary.
Restart by switching the pump back on.
Check whether all seals have been in-
stalled and are seated correctly prior to as-
sembly.
Manually tighten the suction hose and the
connection adapter.
Check fuses and electrical connections
Remove the pre-filter and the check valve
and clean it under running water, flush dirt
residues from the bottom of the filler neck
through the filler hole if necessary.
The pump automatically switches back on
as soon as the pressure in the system falls
below 1.3 bar.
Even after switching it off an back on the
appliance does not start in the automatic
mode if there is an internal pressure of
more than 1.3 bar.
– 8
EN
25