Karcher BP 3 Home & Garden - Manual (Page 29)

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Pump stops, LED "Er-
ror on suction side" is
illuminated. Failure on the suction
side, pressure cannot
build up Switch off the pump and pull the power
plug.
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 connections on the suction side for
leakage.
Restart by switching the pump back on.
Check if there is sufficient water in the suc-
tion container (e.g. cistern).
Flow rate very low -> the
dry run protection has
switched off the pump. Check if there is sufficient water in the suc-
tion container (e.g. cistern).
The flow is insufficient. Open tap more.
Fault delivery side (leak-
age or closed tap) during
suction. Pump does not
end the suction mode. Open tap.
Check system for leakage. If the leakage
cannot be eliminated, install pressure
equalization container.
(see special accessories)
Automatic mode:
Pump stops, LED "Er-
ror on delivery side" is
illuminated. Failure in the pressure
line, the pump frequently
switches on and off as a
result of leakage. Check and correct the pressure line for
leakages (dripping water tap).
Restart by switching the pump back on.
Check system for leakage. If the leakage
cannot be eliminated, install pressure
equalization container.
(see special accessories)
Error on delivery side.
The pressure is too low
after shutdown of the
pump, the appliance
starts again immediately
and thus switches on
and off frequently. There is no sufficient elastic volume avail-
able on the delivery side.
Use a garden hose with a minimum length
of 5 m at a diameter of 3/4" or 15 m at a di-
ameter of 1/2" for garden applications.
With permanent installations, install a
pressure equalization hose or pressure
equalization container on the delivery side
between the pump and the piping.
(see special accessories)
Restart by switching the pump back on.
Continuous opera-
tion:
Pump stops, LED "Er-
ror on delivery side" is
illuminated. The appliance works for
at least four minutes, al-
though the outlet on the
delivery side (e.g. tap) is
closed.
Overheating protection
switches off the appli-
ance. Pull out the mains plug.
Depressurise the appliance by opening the
water outlet connected on the delivery
side.
Restart by switching the pump back on.
Fault Cause Remedy
29 EN