Karcher pressure washer loses pressure...

Posted by David Nebenzahl on January 27, 2009, 2:41 pm

On 1/27/2009 7:14 AM sammybar spake thus:

>> The Karcher site does have very good documentation for their washers,
>> including exploded diagrams that make it pretty easy to locate the
>> parts. I think the part I had to replace was a seal.

> I have been looking around the Karcher web sites but all the
> documentation I can find is the user manual. Exploded diagrams will be
> very helpful for me but I can not locate where they are. Could you
> point me to the right place?

Aha, it's coming back to me; I didn't leave any notes or bookmarks from
my previous search.

So for some strange reason, Karcher doesn't have these documents on its
web site. You have to contact a "local service center" (must be due to
some contractual arrangement). Here's the note from their site:

Regrettably parts breakdowns can not be obtained directly from
Kärcher. Parts breakdowns for your model may be obtained by visiting or
contacting a local service center.

Kärcher does not recommend repairing internal parts of the pressure
washer yourself. It can cause severe damage. Please visit an authorized
dealer for repairs. Any internal repairs not preformed by an authorized
dealer void all warranties.

Please refer to Kärcher’s Service Center Locator to find your nearest
location.
Kärcher also recommends contacting one of our top distributors:

R. J. Bowers (800) 383-6584 www.rjbowers.com
Pressure Parts (800) 999-2245 www.pressureparts.com

So I ended up making a bunch of phone calls, getting the runaround a few
times, and finally finding the information I was looking for. Sorry, but
that's the way things are set up there. If you're persistent you'll find it.

This page, with all its links, is at
http://karcher-usa.custhelp.com/cgi-bin/karcher_usa.cfg/php/enduser/std_adp.php?p_faqid=141

(Just ignore their warning about DIY repairs. Ain't rocket science.)

--
Made From Pears: Pretty good chance that the product is at least
mostly pears.
Made With Pears: Pretty good chance that pears will be detectable in
the product.
Contains Pears: One pear seed per multiple tons of product.

(with apologies to Dorothy L. Sayers)

Posted by sammybar on January 27, 2009, 7:33 pm

> So I ended up making a bunch of phone calls, getting the runaround a few
> times, and finally finding the information I was looking for. Sorry, but
> that's the way things are set up there. If you're persistent you'll find it.

Thanks a lot!, I (you) found the exploded diagrams. It can help me a
lot, thanks again...

Posted by Hustlin' Hank on January 27, 2009, 5:27 am

> 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

Yep, you have a leak on the high pressure side. Probably in the
connection where the little hose is suppose to pick up and mix the
soap. I took that connection out of the line because I don't mix soap.
Just hook up the high pressure hose direct to the unit. That was my
problem anyway. Hope this helps.

Hank <~~~always under pressure

Posted by sammybar on January 27, 2009, 10:21 am

> Yep, you have a leak on the high pressure side. Probably in the
> connection where the little hose is suppose to pick up and mix the
> soap. I took that connection out of the line because I don't mix soap.
> Just hook up the high pressure hose direct to the unit. That was my
> problem anyway. Hope this helps.

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

Posted by ransley on January 27, 2009, 11:33 am

> > Yep, you have a leak on the high pressure side. Probably in the
> > connection where the little hose is suppose to pick up and mix the
> > soap. I took that connection out of the line because I don't mix soap.
> > Just hook up the high pressure hose direct to the unit. That was my
> > problem anyway. Hope this helps.

> 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

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

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Karcher pressure washer loses pressure... - Page 2