Question about Karcher Garden

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I do not always have pressure. Water will com e out and when I do have pressure as long as I do not release the trigger it will continue to have pressure. When I let off the trigger and the press it again it will take several tries to start again.

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  • Ken Fowler
    Ken Fowler Mar 11, 2011

    the wand is starting to fail. try to keep from doing the restart and it will last must longer.
    find another wand to test with

    good luck

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  • 45 Answers

What you have is a sticking unloader or in the case of some equipment a spill valve. Depending on the machine that you have you will either need to replace or lubricate the valve. This is most common on home owner style Karcher units with the following model numbers.

K2300G 1.194-110.0
K2400HB 1.194-303.0
K2400HH 1.194-302.0
K2400HH-Q/C 1.194-301.0
K2401HH/G 1.194-305.0
K5800G-PL 1.194-104.0
K5800G 1.194-103.0, 1.194-102.0

For instructions on repairing the units with these model numbers please visit:
www.landanw.com/dms

Select:
Maintenance/Karcher/Pressure Washer/All/Spill valve lubrication.

This will walk you through all the steps necessary to correct the problem.

Sincerely,
Aron Kerr
Landa Northwest
www.landanw.com

Posted on Mar 11, 2011

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To determine if your problem is due to an easily replaceable part, follow these steps:

1. Connect the water supply hose, the pressure hose, and the wand WITHOUT any nozzle tip.

2. Turn on the water supply, and press the trigger until water is smoothly running out of the nozzle
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3. Start the engine, and let it warm up for about 30 seconds.

4. With the engine running smoothly, press the nozzle trigger. The water should flow out of the nozzle (without the tip installed) at a faster rate, while the engine noticeably loads down as it used to do before your "no pressure" problem. If it does not load down, turn it OFF, and disconnect everything, and contact a Karcher repair facility.

5. If the engine does load down, release the trigger, and install one of the nozzle tips (not the black one).

6. Press the trigger, and the engine should load down, and you should have normal pressure from the wand. After you release the trigger and press it again, you will probably again have no pressure, and the engine will not load down. Removing the nozzle tip, pressing & releasing the trigger, and re-installing the tip should give you normal pressure again, but releasing the trigger will cause no pressure until you again remove the tip, press the trigger, and re-install the tip.

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i have encountered the problem is in the pressure switch, even the pressure went down, sometimes it wont close the contact then the motor wont run ,

if the motor is continously running, then the trigger switch is the problem, the pressure excerted on the switch is so high that even if you press it , it won't open up to release the water.

what i can suggest is to tie the trigger in the gun so that it is always pressed and then just unplug the unit if you want to stop using it. it is an inconvenience but it will work.

or, open the gun and see if you can figure out why pressing the trigger would not open the switch.

another option is you can lower the pressure of the washer if it has an adjustable pessure controller. by lowering the pressure might open the switch when ever you press the trigger.

i hopw i was able to fix...

good luck,

drcool

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