Symptom
Cause
Solution
No detergent.
Detergent suction tube not Check connection.
properly connected to the
machine.
Detergent is too thick.
Dilute detergent, for best re-
sults use Kärcher
®
detergent.
Filter on detergent suction
tube is clogged.
Run warm water through filter
to remove debris.
Damaged or clogged deter- Remove obstruction or replace
gent suction tube. detergent suction tube.
Spray wand is in high pres- Turn spray wand tip to low
sure position. pressure position.
Discharge nozzle is obstruct- Blow out or remove debris with
ed.
fine needle.
Garden hose con- Loose fittings.
nection leaks.
Spray wand leaks. Spray wand not properly at- Insert the spray wand into the
Tighten fittings.
Missing/worn rubber washer. Insert new washer.
tached.
trigger gun. Carefully press in
against the spring tension and
twist into the locked position.
Broken o-ring or plastic in- Call Customer Support
sert.
Pump is noisy.
Pump is sucking air.
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.
Water leaks from Loose fittings.
Check that all fittings are tight.
pump (up to 10
drops per minute
is permissible).
Oil Drip.
Water seals are damaged or Call Customer Support
worn.
Oil seals are damaged or
worn.
Call Customer Support
If you encounter any additional difficul-
ties not listed, please visit our website.
USA / Canada:
www.karcher-help.com
México:
www.karcher.com.mx
20
English
| Categories | Kärcher Pressure Washer Manuals, Pressure Washer Manuals |
|---|---|
| Tags | Kärcher K 3.740 |
| Download File |
|
| Language | English, Français, Español |
| Product Brand | Kärcher. Kärcher US Home and garden support phone: 1-800-537-4129 Kärcher international support: http://www.karcher.com/start/choose_your_language.htm, Pressure Washer |
| Document File Type | |
| Publisher | karcherresidential.com |
| Wikipedia's Page | Kärcher |
| Copyright | Attribution Non-commercial |
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