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