Question about Karcher 2500 PSI Pressure Washer

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Hi I have a karcher 360 thats working fine with everything from the water side of it but it has lost its pressure and only comes out like a hose, can you please advise of the problem...... Thanks Geoff

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Check the pressure relief valve, it is stuck open and not letting pressure increase in the pump

Posted on Nov 19, 2009

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My Karcher 720mx moter is working fine but i have no water pressure coming from pump


hi put some silicon spray in inlet and outlet then reconnect hoses what is going on is when you store it the seals start to dry out.........

Jan 13, 2011 | Karcher K3.68MR Electric Pressure Washer

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Karcher is spraying water from inside the unit, it actually a k2.97, any ideas please


Hi I have water spraying from air vent/intake on side of my k370 can you help ?

Mar 01, 2010 | Karcher K2.26 Electric Power Washer

1 Answer

I have a karcher 360.That dosn't have as much preasure as my water hose.Is their a filter or a screen I can clean out?


were your hose hock's up their should be a screen there ,that comes out, also check for calcium build up (white) check your won to make sure its not plugging, and your tip. a little tip, under low pressure use your soap pick up tube and put it in a gouge of vinegar. this will help brake up the calcium. when storing do the same and us RV antifreeze. hope this helps

Oct 16, 2009 | Karcher Garden

1 Answer

Karcher pressure washer works only with low pressure


The inlet screen orientation is of no consequence. Either way should work fine. Check two things...

1) Many of the spray nozzles have a high and low setting at the tip of the wand (where the water comes out). See if your nozzle has any "Push-Pull" movement (with the unit turned off). If so, it might be set in the "LOW" setting and needs to be changed.

2) Located on some SIDE MOUNTED pumps is a "Variable-Volume" adjustment. It may need to be turned to increase the flow and should be marked with a plus (+) and minus (-) along with direction arrow.
NOTE: If your pump is mounted on the bottom of your engine you will not have this adjustment.
Hope this helps!

Sep 30, 2009 | Karcher G3025OH Pressure Washer

1 Answer

Karcher K 3.86 electric. Was working fine and


It sounds like you have cracked part inside. Parts availability depends on were you live???

Sep 18, 2009 | Karcher K 2.25 R Electric Pressure Washer

1 Answer

No pressure on certain settings


Dear Osville,
It is not clear what type of lance or nozzel you have. You said that the machine works fine with the circulating water jet(the turbo). So it seems the machine is fine. I do sometimes service variable nozzels and variable lances. But the best solution is to replace nozzels and variable nozzles and lances with new ones. Regarding the fan spray setting it could have no pressure because it might be in the chemical setting. The chemical setting lets out a fan shape flow of water, but with less pressure. The chemical system only works on low pressure in domestic washers, that is why it needs a low pressure flat spray. The pencil jet has 2 jets comming out because if it is a lance or nozzel with ball bearings, these ball bearings must have stuck in a wrong position. Also 2 jets can come out, due to a damaged nozzel hole.
Altogether, the best advice is to buy a new nozzel or lance...which ever your machine uses. All Karcher machines have their own specific nozzels, lances and high pressure hoses. You cannot change these from one model to another.
Regards,
Fulltech.

Apr 29, 2009 | Alfred Karcher K 5.93 M Electric Pressure...

1 Answer

There is no power when you use the sprayer Karcher K2.89


Depends on the model, but it is probably the pump, Most Karchers do not use expensive pumps. Also, if the end of your hose is off, you won't get much pressure either as it takes a restriction in the end of the hose to increase the pressure. I have commercial pressure washing business & occasionally have an hose end come off, pump problem or high pressure switch problem, but all this stuff can be fixed. Hope this helps you, Rick

Apr 22, 2009 | Karcher 2500 PSI Pressure Washer

2 Answers

LOST KARCHER INSTRUCTION BOOK, ARE INSTRUCTIONS ON LINE


Here is the offical link to manuals and warranty cards for the residential models of Karcher Pressure Washers
.
http://www.karcherresidential.com/us/Service/usermanuals.htm

Jan 22, 2009 | Karcher K2.26 Electric Power Washer

2 Answers

Karcher k7.80 pressure washr


I have a Karcher K 3.86 M electric PW with a similar problem: water leaks from the pump near the outlet and the pressure surges on and off continuously at intervals of 1-2 seconds. The leak appears to be coming from a very thin crack in the plastic pump head in what I think is the "unloader" valve portion. I read elsewhere that if you leave water in these PW's and it freezes it will crack, causing leaks. I don't know how you can empty all the water out so I think we must store these PW's in areas that won't freeze in winter.

Jul 29, 2007 | Karcher 2500 PSI Pressure Washer

2 Answers

Karcher HD 655 S Does not come up to full pressure


yes...check the check valve. A one-way directional valve, this part is also known as a DUMP valve. It opens when too much pressure builds in the hand wand (when not spraying water) in order to protect the pump, by returning the high pressure to its source reservoir. I suspect the DUMP valve is stuck in open condition (or nearly open).

Jun 10, 2007 | Karcher 2500 PSI Pressure Washer

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