Troubleshooting - Kärcher 1800 Operator's Manual

TROUBLESHOOTING

Symptom
Engine will not start
For additional
engine problems
refer to the engine
owners manual.
Unit does not reach
high pressure.
Output pressure
varies high and low.
Cause
No gasoline.
Low oil level.
Engine is not primed.
Engine throttle is not in
correct position.
Pressure built up in the
high pressure washer.
Diameter of garden hose
is too small.
Water supply is restricted.
Not enough inlet water supply.
Water inlet filter is clogged.
Spray wand is in low
pressure position.
Not enough inlet water supply.
Pump is sucking air.
Water inlet filter is clogged.
Discharge nozzle is
obstructed.
Calcified gun, hose or
spray wand.
Solution
Fill gas tank.
Add oil.
Push primer ball three times.
Position the throttle to "FAST".
Squeeze the trigger to release the
pressure.
Replace with a 3/4 inch garden
hose.
Check garden hose for kinks, leaks
and blockage.
Open water source full force.
Remove filter and rinse out in warm
water.
Turn spray wand tip to high pres-
sure position.
Turn water on full force. Check garden
hose for kinks, leaks or blockage.
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.
Remove filter and rinse out in warm
water.
Blow out or remove debris with a
fine needle.
Run distilled vinegar through
detergent suction tube.