Troubleshooting Guide - Kärcher K 4 Power Control Manual De Instrucciones

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 men-
tioned here, please contact your autho-
rized Customer Service.
DANGER
Risk of electric shock
Injuries due to touching live parts
Switch off the device.
Remove the mains plug.
Device is not running
1. Press the lever of the high-pressure
gun.
The device switches on.
2. Check if the voltage specified on the
type plate matches the voltage of
the power source.
3. Check the mains connection for
damage.
4. If the motor is overloaded and the
motor circuit breaker has tripped:
a Switch off the device "0/OFF".
b Allow the device to cool off for 1
hour.
c Switch on the device "I/ON" and
put it into operation.
If the malfunction occurs several
times, have the device checked by
Customer Service.
Device does not start, motor hums
Voltage drop due to weak mains or
when using an extension cable
1. When switching on, first press the
lever of the high-pressure gun, then
switch on the device "I/ON".
The device does not reach required
pressure
The water supply is too low
1. Open the water tap completely.
2. Check the water inlet for sufficient
flow rate.
The sieve in the water connection is
contaminated.
1. Pull out the sieve in the water con-
nection with flat pliers.
2. Clean the sieve under running wa-
ter.
There's air in the device.
1. Vent the device:
a Switch on the device for a maxi-
mum of 2 minutes without the
spray lance connected.
b Press the high-pressure gun and
wait until water comes out of the
high-pressure gun without bub-
bles.
c Connect the spray lance.
d During suction operation, observe
the max. suction height (see chap-
ter Technical data).
Strong pressure fluctuations
1. Cleaning the high-pressure nozzle:
a Remove contamination from the
nozzle drill with a needle.
b Rinse the high-pressure nozzle
with water from the front.
2. Check the water supply volume.
Device leaking
1. A slight leakage in the device is due
to technical reasons. In case of se-
vere leakage, contact an authorized
Customer Service center.
Detergent is not sucked in
1. Use the Vario Power spray lance
and turn it to "MIX".
2. Check that the Plug 'n' Clean deter-
gent bottle is seated in the connec-
tion for the detergent with the
opening facing down.
English 15