Care And Service; Troubleshooting Guide - Kärcher K 7 Premium Smart Control Manual

3. Press the separation button on the high-pressure
gun and disconnect the high-pressure hose from the
high-pressure gun.
ATTENTION
Damage to the high-pressure hose
Damage to the high-pressure hose through incorrect di-
rection of rotation
Observe the correct direction of rotation of the hose reel
when winding on the hose.
4. For devices with a hose reel: Use the crank handle
to turn the hose reel anticlockwise and coil up the
high-pressure hose.
5. For devices without a hose reel: Store the high-pres-
sure hose on the device.
6. Store the mains connection cable and accessories
on the device.
Observe the additional instructions before storing the
device for a longer period of time, see chapter Care and
service.
Frost protection
ATTENTION
Danger of frost
Incompletely emptied devices can be destroyed by
frost.
Completely empty the device and accessories.
Protect the device from frost.
The following requirements must be satisfied:
The device is disconnected from the water supply.
The high-pressure gun is disconnected from the
high-pressure hose.
1. Switch the device on "I/ON".
2. Wait for a maximum of 1 minute until no more water
escapes from the high-pressure hose.
3. Switch off the device.
4. Store the device in a frost-protected room, together
with all accessories.

Care and service

DANGER
Danger of electric shock
Injuries due to touching live parts
Switch off the device.
Remove the mains plug.
The device is maintenance-free, i.e. you do not need to
perform any maintenance work.
Clean the sieve in the water connection
ATTENTION
Damaged sieve in the water connection
Damage to the device through contaminated water
Check the sieve for damage before inserting it in the wa-
ter connection.
If necessary, clean the sieve in the water connection.
1. Remove the water connection coupling.
2. Pull the sieve out using flat pliers.
3. Clean the sieve under running water.
Illustration O
4. Insert the sieve into the water connection.
Replacing the batteries of
the high-pressure gun
Two non-rechargeable or rechargeable AAA batteries
are required.
The batteries are exhausted if nothing or a flashing bat-
tery symbol is visible in the display of the high-pressure
gun.
Illustration P
1. Press the locking slide.
Illustration Q
2. Open the battery compartment.
3. Remove the battery.
4. Insert new batteries, while paying attention to the
correct alignment of the poles.
5. Close the battery compartment.
6. Dispose of the used batteries in accordance with
statutory provisions.

Troubleshooting guide

Malfunctions often have simple causes that you can
remedy yourself using the following overview. When in
doubt, or in the case of malfunctions not mentioned
here, please contact your authorised Customer Service.
DANGER
Danger of electric shock
Injuries due to touching live parts
Switch off the device.
Remove the mains plug.
Device not running
1. Press the lever of the high-pressure gun.
The device switches on.
2. Check that the voltage specified on the type plate
corresponds to the voltage of the power source.
3. Check the mains connection cable for damage.
4. If the motor is overloaded and the motor circuit
breaker has triggered:
a Switch off the device "0/OFF".
b Allow the device to cool down for 1 hour.
c Switch the device on "I/ON" and resume opera-
tion.
Have the device checked by Customer Service if
this fault occurs repeatedly.
The device does not start up, the motor buzzes
Voltage drop due to a weak mains grid or when using an
extension cable
1. When switching on, first press the lever on the high-
pressure gun and then switch on the device "I/ON".
Device does not reach required pressure
The water supply is too low
1. Open the water tap fully.
2. Check the water inlet for an adequate flow rate.
The sieve in the water connection is dirty.
1. Pull the sieve in the water connection out using flat
pliers.
2. Clean the sieve under running water.
Air is in the device.
1. Vent the device:
a Switch on the device without a connected spray
lance for a maximum of 2 minutes.
b Press the high-pressure gun and wait until the
water escaping from the high-pressure gun is
free of air bubbles.
c Connect the spray lance.
d Observe the maximum suction height during suc-
tion operation (see chapter Technical data).
Strong pressure fluctuations
1. Clean the high-pressure nozzle:
a Use a needle to remove dirt from the nozzle drill.
b Rinse the high-pressure nozzle from the front
with water.
2. Check the water supply volume.
Device leaking
1. The device leaks a small amount for technical rea-
sons. If the leak is severe, request authorised Cus-
tomer Service.
Detergent is not sucked in
1. Turn the 3-in-1 Multi Jet spray lance to detergent
nozzle "MIX".