Caution
To avoid risks, all repairs and replacement of spare parts may only be carried out by the
authorised customer service personnel.
Fault
Pump runs but does not
transport
Pump does not run or sud-
denly comes to a standstill
during operations
Pumping capacity is reduc-
ing
Pumping capacity too low
Troubleshooting
Cause
Air in the pump
Suction area blocked
(only in manual mode) Wa-
ter level below the minimum
water level
Power supply interrupted
Thermal protection switch
has switched off the pump
due to over-heating
Dirt particles have got
jammed into the suction
area
Pump operation stopped by
sensor
Suction area blocked
The pumping capacity de-
pends on the flow height,
hose diameter and hose
length.
– 5
EN
Remedy
Plug in/ pull out the mains
plug of the pump a few
times till the fluid gets
sucked
Pull out the mains plug and
clean the suction area
Where possible, immerse
the pump deeper into the
liquid or proceed according
to the instructions in the
chapter describing the prep-
arations necessary for auto-
matic operation
Check fuses and electrical
connections
Pull out the mains plug, let
the pump cool down, clean
the suction area, prevent
dry running
Pull out the mains plug and
clean the suction area
Check position of level sen-
sor
Pull out the mains plug and
clean the suction area
Keep max. flow height, see
technical data. If necessary,
select a different hose diam-
eter or hose length.
15