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Kärcher HD 425 Operator's Manual page 11

Karcher electric pressure washer operator's manual
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TROUBLESHOOTING – continued
Symptom
No detergent.
Garden hose
connection leaks.
Spray wand leaks.
11
Pump is noisy.
Water leaks from pump (up
to 10 drops per minute is
permissible).
Oil Drip.
If you encounter any additional difficulties not listed, please call your dealer or
Customer Service at 1-888-705-9444 for help, or visit www.karcher.ca
Cause
Detergent is too thick.
Filter on detergent suction tube is
clogged.
Damaged or clogged detergent
suction tube.
Triple nozzle is in high pressure
position.
Discharge nozzle is obstructed.
Loose fittings.
Missing/worn rubber washer.
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.
Run warm water through filter to
remove debris.
Remove obstruction or replace
detergent suction tube.
Turn nozzle tip to low pressure
position.
Blow out or remove debris with a
fine needle.
Tighten fittings.
Insert new washer.
Slide the spray wand into the
trigger gun. Turn the wand collar
clockwise onto the gun threads
until thight.
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.

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