Kärcher K 3.81 M Operator's Manual page 16

Symptom
No detergent.
Garden hose con-
nection leaks.
Spray wand leaks.
Pump is noisy.
Water leaks from
pump (up to 10
drops per minute is
permissible).
Oil Drip.
Kärcher Customer Support USA
Call: 1-800-537-4129 for help or visit
our website: www.karcher-usa.com
If you encounter any additional difficul-
ties not listed, please call for help.
16
English
Cause
Detergent suction tube not
properly connected to the
machine.
Detergent is too thick.
Filter on detergent suction
tube is clogged.
Damaged or clogged deter-
gent suction tube.
Spray wand is in high pressu-
re position.
Discharge nozzle is obstruc-
ted.
Loose fittings.
Missing/worn rubber washer. Insert new washer.
Spray wand not properly atta-
ched.
Broken o-ring or plastic in-
sert.
Pump is sucking air.
Loose fittings.
Water seals are damaged or
worn.
Oil seals are damaged or
worn.
Solution
Check connection.
Dilute detergent, for best re-
sults use Kärcher detergent.
Run warm water through filter
to remove debris.
Remove obstruction or repla-
ce detergent suction tube.
Turn spray wand tip to low
pressure position.
Blow out or remove debris
with fine needle.
Tighten fittings.
Insert the spray wand into the
trigger gun. Carefully press in
against the spring tension
and twist into the locked posi-
tion.
Call service center.
Check that hoses and fittings
are air tight. Turn off machine
and purge pump by squee-
zing trigger gun until a steady
flow of water emerges throu-
gh the nozzle.
Check that all fittings are
tight.
Call service center.
Call service center.