Kärcher G 4000 OH Operator's Manual page 16

Symptom
No detergent.
Garden hose
connection leaks.
Spray wand leaks.
Pump is noisy.
Water leaks from
pump (up to 10
drops per minute is
permissible).
Oil Drip.
If you encounter any additional difficul-
ties not listed, please call for help or visit
our website.
16
English
Cause
Detergent suction tube not
properly connected to the
machine.
Detergent is too thick.
Filter on detergent suction
tube is clogged.
Detergent filter valve is at
lowest setting.
Damaged or clogged deter-
gent suction tube.
A high pressure nozzle is
attached.
Spray nozzle is obstructed. Blow out or remove debris with
Loose fittings.
Missing/worn rubber wash-
er.
Spray wand not properly
attached.
Broken o-ring or plastic in-
sert.
Pump is sucking air.
Loose fittings.
Water seals are damaged
or worn.
Thermal protection device
is activated.
Oil seals are damaged or
worn.
Solution
Check connection.
Dilute detergent, for best results
use Kärcher detergent.
Run warm water through filter to
remove debris.
Set detergent filter valve to a
higher setting.
Remove obstruction or replace
detergent suction tube.
Replace with black detergent
nozzle.
fine needle.
Tighten fittings.
Insert new washer.
Turn the swivel nut of the gun
clockwise until connection is
tight.
Call Customer Support
Check that hoses and fittings are
air tight. Turn off machine and
purge pump by squeezing trig-
ger gun until a steady flow of wa-
ter emerges through the nozzle.
Tighten fittings.
Call Customer Support
Thermal protection device will
auto reset. Do not run pump for
more than 5 minutes without
spraying.
Call Customer Support