Question about Karcher 2500 PSI Pressure Washer

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Pump Problem First time I used the pressure sprayer it worked great for about 10 minutes and then water started shooting out the side of the pump. Then I lost pressure.

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  • 226 Answers

SOURCE: 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

Posted on Apr 26, 2009

  • 1 Answer

SOURCE: Ex-Cell VR2500 Builds Pressure but Won't Spray

I have a similar problem and diagnosed it to be a problem with the gun. I spoke to a technician that services this pressure washer and he walked me through all the diagnostic steps. The pump is working because there is pressure being built up and the gun sort of works because you can get water out before the washer is started. The technician said that the mechanism inside the gun is either clogged or broken. I am going to Home Depot or Lowes to purchase a new gun and will try it tonight. Guns are only about $30-40. He said generic is fine as long as the thread matches and PSI is in range. Good luck!

Posted on Aug 14, 2009

  • 1378 Answers

SOURCE: Low Pressure

I worked at a tool rental while attending college and had the opportunity to work on a variety of pressure washers, however, they were of the commercial type. Commercial washers are slightly different in that they usually have seperated components for easier service. Attached to the pump by fittings or rubber hose were the pressure regulator (which has the bypass unloader inside), chemical injector, pressure gauge as well as the hot water release safety all external to pump. Your pump has all these components in one case. By far the most troublesome component is the pressure regulator/unloader which when failing will result in low pressure because it will bypass water back into the intake as you suspect is happening to yours. Here are a few things to check. I believe that your pump is 2500 2.4 gpm. Test gpm water capacity by running pump normally with hose and proper tip attached. Spray water into bucket for one minute and verify that you are pumping 2.4 gallons of water (or what ever gpm your machine is rated). Measure the amount of water that your machine delivered. If it delivered proper gpm and pressure is low then problem could be worn or improper tip. The pressure is created at the tip and pressure will drop as the tip wears. As the unloader/bypass wears, water will bypass at a lower pressure. (Try lowering the pressure regulator all the way ) If water measures less than rated delivery than the machine is bypassing water due to worn regulator/bypass, checkvalves pitted, oring in front of checkvalve worn or cut or missing, or body of pump where checkvalve/oring seat is pitted allowing water to leak past valve. The cap that is removed to access checkvalve must presses against checkvalve with enough force to prevent water from leaking thru oring and body of pump. Examine checkvalves and orings with maginfy lens and look for pitting. Valves surface and orings must be very smooth and tight fitting to work properly. Body of pump where checkvalve oring snuggs against must be very smooth. Any surface where oring seats must be smooth. As water bypasses it cuts metal and orings just like a leaking faucet so look for cuts in metal and rubber. This info and my experience is better suited for larger pumps and higher pressure but maybe it will help. Good luck with your repair.

Posted on Jul 11, 2010

  • 13 Answers

SOURCE: high pressure won't return when triggered

If you unplug the tip, will it work? If so, unloader valve is sticking.

Posted on Jul 16, 2010

wmpcs
  • 100 Answers

SOURCE: Engine runs great, Pump will not sustain high

See this link

Posted on Nov 01, 2010

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1 Answer

Craftsman 2200psi powerwasher does not have much water pressure, why.


This could be several things. There is a bypass valve that opens when you are not using the sprayer. This keeps the water from causing problems by building pressure. IT dumps the water back to the suction side of the pump from the output side. IT might be out of adjustment or it could be stuck open. The other thing is that the valves in the pump itself are not closing.

May 18, 2013 | Garden

1 Answer

My pressure washer is a G 2500 oh n i have no pressure coming out, it turns on but no pressure.


Good news, your engine runs
But your pump may be bad

Here's how to test your pump
Check oil as outlined lower down
Disconnect the washer hose and gun
Connect water hose and turn on water and water should pass straight through the pump
Look for clogs in the hose-end where water hose connects to machine

Turn on machine and see if water shoots out pump
If water shoots out of pump, but no water shoots out of gun, then you may have a 'mud-dobber' wasp clog in your washer line or gun

Look for clogs in the end of each water connection.
Now connect washer hose without the gun, tun on the machine, and see if water shoots out of washer hose
Finally, the gun trigger mechanism may be bad
I don't know which gun you have ... but we replaced guns on our machine now-and-then ... google-search power washer guns for a replacement

Check your pump oil
Pump oil is SAE20 or SAE30 non-detergent motor oil
Pump should be no more than 1/2 full of oil
Use plastic hose to drain pump oil
Do not turn machine on its side or turn machine over or engine oil will run into carburetor

Oct 20, 2010 | Karcher 2500 PSI Pressure Washer

1 Answer

How do we get the cleaner to go up the hose


We used to add a clorox mixture when we power-washed

There is a special fitting that goes on the power washer line
The fitting is a T with 2 quick connects that match your pump&hose quick connects
The T fitting attaches to pump >> the power washer line attaches to T
The T fitting has a short extension where you attach a plastic hose that goes to your bucket of clorox
The T has a small one-way ball valve that only lets clorox enter the power washer line, but power washer pressure doesn't escape into the clorox
The small ball will clog over time, so when you buy a T, see if you can get replacement part

When you pull the trigger, the pump pressure shoots water out of the gun
The water pressure shooting out of the gun creates a suction that draws up the clorox
The clorox enters the line and gets shot out of the gun
The same basic idea is used on shallow well pumps

We discovered after a few years that is was easier-to-control and cheaper to apply the clorox with a pump-up hand sprayer. We could apply more clorox. The machine was not exposed to chemicals.
Remember the engine draws-in surrounding vapors and those vapors can chew up the metal parts of any combustion surface.

Oct 19, 2010 | Black & Decker Garden

1 Answer

Hello, I have a couple year old brigs and strattion upright pressure washer. It has always ran great untill recently. It will run for a acouple minutes before dying, like it is starving for fuel. i give it...


Check the oil level in the engine itself. Verify that your oil reservoir is full, then try again.

You may also want to refer to the owners manual for other trouble shooting tips. Click this link to go to your manual.

http://www.pressurewashersdirect.com/manuals/020244%20manual_2.pdf

And remember
Automatic Cool Down System
(Thermal Relief)
If you run the engine on your pressure washer for
3-5 minutes without pressing the trigger on the spray gun,
circulating water in the pump can reach temperatures
above 125°F.The system engages to cool the pump by
discharging the warm water onto the ground

Mar 24, 2010 | Briggs & Stratton Gas Pressure Washer...

2 Answers

Troy-bilt 2200 psi pressure washer


I have a Troybilt Model 2200 PSI Pressure Washer in which I have used only 2 times in the past 2 1/2 years. Went to use it this past weekend and the pump in not working. Water shoots out of the side. I bought this brand and model as I thought Troybilt was suppose to be so good. Went back to where it was purchased and had no success but to say I could buy another pump or take it in to be repaired. I believe that this power washer should be replaced at no charge. 2 uses does not constitute a few hundreds of dollars.
Have you to heard anything concerning pump problems on this particular model? Thanks for any advice. .

Jul 09, 2009 | Garden

1 Answer

Trying to find how i can build my own trailer mounted sprayer for dust control


No need to re-invent the wheel when building your trailer mounted sprayer. Your local Northern tool Store, or at the address below,

http://www.northerntool.com/webapp/wcs/stores/servlet/category_6970_166839

you will find all the parts that you will need to complete your project. I have purchased several different types of sprayers, tanks, pressure pumps and parts from them over the years. They have a helpfull staff and most parts are in stock. Take a look at ready made trailer mounted sprayers there to pattern yours after then design in your special needs.
My first portable sprayer was made from four 55 gallon drums loaded onto the back of my pickup. For the pump I used a modified 2" trash/water pump reduced to 1' pipe then seven nozzles. Worked great however 220 gallons of water did not last very long. Problems began with the weight of water in large quantity. I decided I needed about 1000 gallons and found that I needed to deal with about 7500 lbs of weight. Oh well, enough already, good luck with your project and email if you have questions.

May 11, 2009 | Cam Spray 25006PM 2500 Psi Cold Water Gas...

1 Answer

Coleman 1600 pressure washer


Remove spray tip and clean with a paper clip, Check pump oil resevior and add 10w 30 pump oil if needed, also look for turn knob ,usually black with -+[plus /minus symbols ] and turn towards plus for extra pressure. May need new pistol/wand assembly and make sure hose is clear by seeing if water will run through hose freely and generously.

Thanks Kf1013 and please vote me a Fix Ya!!!

JJ505

Apr 13, 2009 | Coleman Pressure Washer PW0881800

4 Answers

Motor/pump pulses--like a rapid on/off rather than a steady hum


I had the same problem,and I replace the spare part set control head parts,Same problem when it goes hum hum,if you look inside it with a magnified glass you`ll be able to see hair crack line.

Nov 02, 2008 | Karcher 1750 psi Electric Pressure Washer

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