Troubleshooting - Kärcher HD 2700 DB Operator's Manual

TROUBLESHOOTING

Symptom
Engine will not
start.
Unit does not reach
high pressure.
Output pressure
varies high and low.
Cause
No gasoline.
Low oil level sensor activated.
Fuel valve is in "OFF" position. Slide the fuel valve lever to "ON" position.
Engine throttle is not
in correct position.
Choke is not in correct position. Slide choke lever left to closed position.
Pressure built up in the
high pressure washer.
Engine switch in "OFF" position. Turn engine switch on.
Diameter of garden hose
is too small.
Water supply is restrict-
ed.
Not enough inlet water supply.
Water inlet filter is
clogged.
Pump pressure control is
in low pressure position.
Black detergent
nozzle is attached.
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.
Slide the throttle left 1/3 of the
way to the fast position.
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 pump pressure control to
high pressure position.
Remove black detergent nozzle
and attach a high pressure nozzle.
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.
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