Karcher pressure washer loses pressure...

Posted by sammybar on January 27, 2009, 7:42 pm

> So you stop spraying, it leaks out the wand nozzle, and you think its
> the pump and a junk unit?

...or may be it is a problem of the wand... You mean the valve on the
wand may be leaking? I'll double check.
Thanks for your advice
Sammy

Posted by Hustlin' Hank on January 27, 2009, 4:21 pm

> Hank, It is no visible leak under the washer but through the high
> pressure output. When the trigger is loosen in the hand gun, it is
> still some liquid flowing out and as a consequence the pump restarts
> to maintain the pressure. That is why I think the problem is inside
> the pump...
> Thnaks for yout hint
> Sammy

Then it is the valve on the handle. ANY leak will cause your problem.
The valve is easy to get apart. Take it apart and clean it out. Should
fix it.

Hank <~~~has a better handle on things

Posted by sammybar on January 27, 2009, 7:46 pm

> Then it is the valve on the handle. ANY leak will cause your problem.
> The valve is easy to get apart. Take it apart and clean it out. Should
> fix it.

It sounds logical. May be you are right. I'll check. Thanks a lot!

Posted by on January 27, 2009, 3:18 pm

On Mon, 26 Jan 2009 15:57:03 -0800 (PST), sammybar

>Hi all,
>My Karcher pressure washer loses pressure very quick. As a result when
>standby the motor restart the operation constantly for a few seconds.
>When operating the washer is fine and the pressure OK.
>A guy said it is a matter of a "seal" that needs replacement. He said
>it is an easy task. I have been googling for a while but it is no
>information on Karcher web site on repairing or servicing its
>machines.
>Does anybody did such a repairing? Any indications, hints available
>online? Any part catalog for Karcher is available online?
>Any hint is welcomed
>Thanks in advance
>Sammy

Try this site. The have breakdown diagrams

http://www.ultimatewasher.com/karcher-breakdown-diagrams.htm#karcherdiagrams

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Karcher pressure washer loses pressure... - Page 3