Troubleshooting - Kärcher K 3.79 M Operator's Manual

Karcher electric pressure washer owner's manual
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TROUBLESHOOTING – continued
Symptom
No detergent.
Spray wand leaks.
Pump is noisy.
12
Water leaks from pump
(up to 10 drops per minute
is permissible).
Oil Drips.
If you encounter any additional difficulties not listed, please call Customer Service
at 1-800-465-4980 for help, or visit www.karcher.ca
Cause
Detergent is too thick.
Spray wand is in high pressure
position.
Discharge nozzle is obstructed.
Spray wand not properly attached.
Broken o-ring or plastic insert.
Pump is sucking air.
Loose fittings.
Water seals are damaged or worn.
Oil seals are damaged or worn.
Solution
Dilute detergent.
Turn spray wand tip to low
pressure position.
Blow out or remove debris with a
fine needle.
Insert the spray wand into the
trigger gun. Carefully press in
against the spring tension and twist
into the locked position.
Call Customer Service.
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.
Check that all fittings are tight.
Call Customer Service.
Call Customer Service.
1-800-537-4129

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