Karcher K 3.99 M specifications TROUBLESHOOTING – continued, In USA Call

Models: K 3.99 M

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TROUBLESHOOTING – continued

TROUBLESHOOTING – continued

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Symptom

Cause

Solution

 

 

 

 

No detergent.

Detergent suction tube not properly

Check connection.

 

 

connected to the machine.

 

 

 

 

 

 

 

Detergent is too thick.

Dilute detergent, for best results

 

 

 

use Kärcher detergent.

 

 

 

 

 

 

Filter on detergent suction tube is

Run warm water through filter to

 

 

clogged.

remove debris.

 

 

 

 

 

 

Damaged or clogged detergent

Remove obstruction or replace

 

 

suction tube.

detergent suction tube.

 

 

 

 

 

 

Spray wand is in high“pressure

Turn spray wand tip to low

 

 

position.

pressure position.

 

 

 

 

 

 

Discharge nozzle is obstructed.

Blow out or remove debris with

 

 

 

fine needle.

 

 

 

 

Garden hose

Loose fittings.

Tighten fittings.

connection leaks.

 

 

Missing/worn rubber washer.

Insert new washer.

 

 

 

 

 

 

Spray wand leaks.

Spray wand not properly attached.

Insert the spray wand into the

 

 

 

trigger gun. Carefully press in

 

 

 

against the spring tension and twist

 

 

 

into the locked position.

 

 

 

 

 

 

Broken o-ring or plastic insert.

Call Kärcher customer service

 

 

 

“hotline and order repair kit “(part

 

 

 

no. 2.883-111.0).

 

 

 

 

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 pump (up

Loose fittings.

Check that all fittings are tight.

to 10 drops per minute is

 

 

Water seals are damaged or worn.

Call service center.

permissible).

 

 

 

 

Oil Drip.

Oil seals are damaged or worn.

Call service center.

 

 

 

 

In USA Call:

1-800-537-4129

or visit our website: www.karcher-usa.com

If you encounter any additional difficulties not listed, please call our service center for help.

Karcher Customer Support USA

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Karcher K 3.99 M specifications TROUBLESHOOTING – continued, In USA Call