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English
21
Failure in the pressure
line, the pump fre-
quently switches on
and off as a result of
leakage.
Check and correct the pressure line for
leakages (dripping water tap).
Restart the pump by simultaneously
pressing the + / - buttons.
Pump stops intermit-
tently and turns back
on. After several cy-
cles, two pairs of
lights blink, alternat-
ing sides
Pressure loss due to
missing or defective
backflow valve
Make sure that the backflow valve is at-
tached directly to the suction input.
Check backflow valve for function and
tightness.
Pressure reduction by
leakages in the sys-
tem
Check all connection locations on the
suction and pressure sides as well as all
the lids for tightness.
Pressure reduction by
air in the system
Install a pressure compensating contain-
er on the pressure side. As an alterna-
tive, an elastic pressure hose can be
used as a pressure tank.
Pump transports is re-
ducing or transported
quantity is too low
Suction pipe blocked
Pull out the mains plug and clean the
suction pipe
Pre-filter is dirty
Remove the pre filter and clean it under
flowing water, rinse any dirt residues
from the filter intake by opening the dis-
charge opening.
Suction side is leaky
Check the entire suction side for leaks
The quantity trans-
ported by the pump
depends on the trans-
port height and the
connected periphery
Keep max. flow height, see technical
data
Fault
Cause
Remedy
Our Kärcher branch will be pleased to help you further in the case of questions or faults.
See address on the reverse.
Содержание BPE 4000/45
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