– 6
Troubleshooting
Danger
To avoid risks, all repairs and replacement of spare parts may only be carried out by au-
thorized customer service personnel.
First pull out the plug from the mains before carrying out any tasks on the machine.
Fault Cause Remedy
Pumping capacity
is reducing
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 necessary, select a different
hose diameter or hose length.
Pump runs but
does not transport
Air in the pump Press the ventilation button or plug in/
disconnect 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
Water level below mini-
mum water level
Immerse, whenever possible, the
pump deeper into the liquid or, in case
of SCP 12000, proceed according to
instructions in the chapter on flat suc-
tion.
Max. flow height exceed-
ed
Adjust the max. flow height as de-
scribed in Chapter Prepare / Fig. F.
Pump does not run
or suddenly 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, pre-
vent 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 IQ Level Sensor
Check the position of the IQ Level Sen-
sor.
Pump no longer
switches on or off in
spite of the IQ Level
Sensor
IQ Level Sensor is con-
taminated
Clean the IQ Level Sensor with clear
water and a cloth.
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