Troubleshooting - Kärcher K 520 M Operator's Manual

TROUBLESHOOTING – continued
Symptom
No detergent.
Garden hose
connection leaks.
Spray wand leaks.
12
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 our service center at 1-800-465-4980 for help.
Cause
Detergent suction tube not properly
connected to the machine.
Detergent is too thick.
Filter on detergent suction tube is
clogged.
Damaged or clogged detergent
suction tube.
Spray wand 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
Check connection.
Dilute detergent.
Run warm water through filter to
remove debris.
Remove obstruction or replace
detergent suction tube.
Turn spray wand tip to low
pressure position.
Blow out or remove debris with a
fine needle.
Tighten fittings.
Insert new washer.
Insert the spray wand into the
spray wand extension. Carefully
press in against the spring tension
and twist into the locked position.
Call service center and order
repair kit.
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 service center.
Call service center.
1-800-537-4129