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Fault
The device builds up no
pressure, or insufficient
pressure or the jet pul-
sates
The device is leaking
The medium pressure
hose is leaking
22
Cause
The nozzle hole of the flat jet nozzle is
dirty.
The water supply is too low.
The water reservoir is empty.
The water supply via the suction hose is
insufficient.
The sealing ring on the coupling is dam-
aged.
The fine filter is dirty.
The medium pressure hose is not
plugged into the device.
The sealing ring on the nozzle of the me-
dium pressure hose is damaged.
The sealing ring on the coupling is dam-
aged.
The device leaks a small amount for
technical reasons.
The medium pressure hose is not
plugged into the medium pressure gun.
The sealing ring on the nozzle of the me-
dium pressure hose is damaged.
The medium pressure hose is damaged. 1. Replace the medium pressure hose imme-
Rectification
1. Remove the dirt from the nozzle hole with
a needle.
2. Flush the flat jet nozzle from the front with
water.
1. Open the water tap fully.
2. Check the water inlet for an adequate flow
rate.
1. Fill the water reservoir with clean, cold
clear water.
1. Only use the KÄRCHER SH 5 suction
hose.
2. Vent the suction hose and the device, see
chapter Sucking water from open contain-
ers.
3. Lay the suction hose without kinks.
4. Pull the trigger all the way to the end stop.
5. Reduce the suction height, for maximum
suction height see chapter Technical data.
6. Still no water is still sucked in: Connect the
device to a water line and operate it for
approx. 1 min. Then install and vent the
suction hose again, see chapter Sucking
water from open containers.
1. Replace the sealing ring.
1. Clean the fine filter, see chapter Cleaning
the fine filter.
1. Do not release the medium pressure hose
from the device while the device is con-
nected to the water supply or inserted in
the water reservoir.
2. Disconnect the water supply or remove the
device from the water reservoir before re-
leasing the medium pressure hose from
the device, see chapter Water removal
from water reservoir.
1. Replace the sealing ring.
1. Replace the sealing ring.
1. In case of more serious leaks, have the de-
vice checked by KÄRCHER Service.
1. Do not release the medium pressure hose
from the medium pressure gun while the
device is connected to the water supply or
inserted in the water reservoir.
2. Disconnect the water supply before releas-
ing the medium pressure hose from the
medium pressure gun, see chapter Con-
nection to a water line or remove the de-
vice from the water reservoir, see chapter
Water removal from water reservoir.
1. Replace the sealing ring.
diately. Do not repair the medium pressure
hose.
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