Kärcher G 4000 RH Manuel D'utilisation page 14

CAUTION
Remove the spark plug cable to prevent
accidental ignition of the engine before
making any repair.
Symptom
Engine will not
start
Unit does not
reach high
pressure.
Output pressure
varies high and
low.
14
English
TROUBLESHOOTING
Cause
No gasoline
Choke is not in the correct
position.
Water pressure built up in the
machine.
For additional engine problems refer to the engine manual.
Diameter of garden hose is too
small.
Water supply is restricted.
Not enough inlet water supply. Turn water on full force.
Water inlet filter is clogged.
Black detergent nozzle is
attached.
Not enough inlet water supply. Turn water on full force.
Pump is sucking air.
Water inlet filter is clogged.
Spray nozzle is obstructed.
Calcified gun, hose or spray
wand.
Solution
Fill gas tank
Slide choke lever out to
closed position.
Squeeze the trigger to release
the pressure.
Replace with a 5/8 inch or
larger garden hose.
Check garden hose for kinks,
leaks and blockage.
Check garden hose for kinks,
leaks or blockage.
Remove filter and rinse out in
warm water.
Remove black detergent
nozzle and attach high
pressure nozzle
Check garden hose for kinks,
leaks or blockage.
Check that hoses and fittings
are air tight. Turn off machine
and purge pump by squeez-
ing trigger gun until a steady
flow of water emerges
through the nozzle.
Remove filter and rinse out in
warm water.
Blow out or remove debris
with a fine needle.
Run distilled vinegar through
detergent suction tube.