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16
CAUTION
Remove the spark plug cable to prevent accidental
ignition of the engine before making any repair.
TROUBLESHOOTING
Symptom Cause Solution
ENGINE WILL NOT
START
No gasoline Fill gasoline tank
Engine switch OFF Turn engine switch to the ON position
Choke is not in the correct
position
Slide choke lever out to closed position
Water pressure built up in
the machine
Squeeze the trigger to release the pressure
For additional engine problems refer to the engine manual.
NOT ENOUGH
PRESSURE
Diameter of garden hose is
too small
Replace with a 5/8” inside diameter or larger
garden hose
Water supply is restricted Check garden hose for kinks, leaks or
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 PRES-
SURE
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 needle
Calcified gun, hose or
spray wand
Run distilled vinegar through detergent
suction tube.
NO DETERGENT
Detergent suction tube not
properly connected to the
machine
Check connection
Detergent suction tube
folded
With machine and water turned off, detach
suction tube to help unfold and reattach.
Detergent is too thick Dilute detergent, for best results use Kärcher
detergent
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