Karcher K 3.99M manual Kärcher Customer Support USA, Symptom, Cause, Solution, No detergent

Models: K 3.99M

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No detergent.

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

Run warm water through fil-

 

tube is clogged.

ter to remove debris.

 

Damaged or clogged deter-

Remove obstruction or re-

 

gent suction tube.

place detergent suction tube.

 

Spray wand is in high pres-

Turn spray wand tip to low

 

sure position.

pressure position.

 

Discharge nozzle is obstruc-

Blow out or remove debris

 

ted.

with fine needle.

Garden hose con-

Loose fittings.

Tighten fittings.

nection leaks.

 

 

Missing/worn rubber washer.

Insert new washer.

Spray wand leaks.

Spray wand not properly at-

Insert the spray wand into

 

tached.

the trigger gun. Carefully

 

 

press in against the spring

 

 

tension and twist into the lok-

 

 

ked 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 machi-

 

 

ne and purge pump by

 

 

squeezing trigger gun until a

 

 

steady flow of water emer-

 

 

ges through the nozzle.

Water leaks from

Loose fittings.

Check that all fittings are

pump (up to 10

 

tight.

drops per minute is

 

 

Water seals are damaged or

Call Customer Support

permissible).

worn.

 

Oil Drip.

Oil seals are damaged or

Call Customer Support

 

worn.

 

Kärcher Customer Support USA

If you encounter any additional difficul- ties not listed, please call

1-800-537-4129for help or visit our website: www.karcher-usa.com/home

16English

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Karcher K 3.99M manual Kärcher Customer Support USA, Symptom, Cause, Solution, No detergent