14
English
CAUTION
Remove the spark plug cable to prevent acciden-
tal ignition of the engine before making any repair.
TROUBLESHOOTING
Symptom
Cause
Solution
Engine will not start No gasoline
Fill gas tank
Choke is not in the correct position. Slide choke lever out to closed position.
Water pressure built up in the ma-
chine.
Squeeze the trigger to release the pressure.
For additional engine problems refer to the engine manual.
Unit does not reach
high pressure.
Diameter of garden hose is too
small.
Replace with a 5/8 inch or larger garden
hose.
Water supply is restricted.
Check garden hose for kinks, leaks and
blockage.
Not enough inlet water supply.
Turn water on full force. Check garden hose
for kinks, leaks or blockage.
Water inlet filter is clogged.
Remove filter and rinse out in warm water.
Black detergent nozzle is attached. Remove black detergent nozzle and attach
high pressure nozzle
Output pressure
varies high and low.
Not enough inlet water supply.
Turn water on full force. Check garden hose
for kinks, leaks or blockage.
Pump is sucking air.
Check that hoses and fittings are air tight.
Turn off machine and purge pump by
squeezing trigger gun until a steady flow of
water emerges through the nozzle.
Water inlet filter is clogged.
Remove filter and rinse out in warm water.
Spray nozzle is obstructed.
Blow out or remove debris with a fine nee-
dle.
Calcified gun, hose or spray wand. Run distilled vinegar through detergent suc-
tion tube.
No detergent.
Detergent suction tube not properly
connected to the machine.
Check connection.
Detergent is too thick.
Dilute detergent, for best results use
Kärcher
®
detergent.
Filter on detergent suction tube is
clogged.
Run warm water through filter to remove de-
bris.
Damaged or clogged detergent suc-
tion tube.
Remove obstruction or replace detergent
suction tube.
A high pressure nozzle is attached. Replace with black detergent nozzle.
Metering valve closed.
Open metering valve.
Spray nozzle is obstructed.
Blow out or remove debris with fine needle.
Garden hose con-
nection leaks.
Loose fittings.
Tighten fittings.
Missing/worn rubber washer.
Insert new washer.
Spray wand leaks. Spray wand not properly attached. Turn the swivel nut of the gun clockwise un-
til connection is tight.
Broken o-ring or plastic insert.
Call Customer Support
