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

  • 1383 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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Tip

Well Pump Problems The Water Well Tank


2811e7c.jpgOne of the common problems with having a well for you water supply is that you have the maintenance of the water pump and the related things that are necessary to make that all work. One of the most important parts of that system is the water well tank or the water pump tank. This tank is what keeps the well pump from having to turn on and off every time you draw a few drops of water.

In the past the tanks were made with an air valve that injected just a bit of air into the tank every time the pump started. This helped to keep some air in the tank and also gave the annoying problem of air coming out of the faucet at times. To make this better well water pump tanks are now made with a diaphragm that separates the air from the water.
This keeps the water cushion trapped inside the tank. That is great and makes the well tank virtually maintenance free as long as there are not holes in the rubber bladder that separates the water and the air.

There are some easy ways to tell if your well pump tank is not working the way that is should work. And also here are some things that you can do to maximize the capacity of the tank.
  1. Drain all the water pressure out of your system. Then check the air pressure in your tank and adjust it to 2 PSI below the cut in pressure of your pump.
  2. Make sure that your pressure switch is giving you 20 PSI differential between the cut in and the cut out of your pump.
  3. Make sure that your tank is big enough to give you at least 2 minutes run time when your pump starts till it stops.

Now for pressure tank not working
  1. The pump starts and stops rapidly while you are drawing water. This means the bladder has failed in the tank and you have no air in the pressure tank. Replace your pressure tank.
  2. You get a slight hesitation as you are drawing water before the pump. This means that you have too much air in the tank and you need to release some air or increase the cut in pressure on the pressure switch.
  3. If in the summer time you see condensation more than halfway up the side of the tank then you have a bad tank. The tank should never be more than about half full of water. Replace the well pressure tank.

One note to consider. If you are not drawing water and your pressure drops rapidly when the well pump shuts off then it is NOT a pressure tank problem, it is a problem with the check valve in the pump.

This should give you a basic trouble shooting guide to your well water tank or water pressure pump tank.

http://www.fixya.com/support/r3689163-water_problems_pump_problems

http://www.fixya.com/support/r3690937-pump_problems_pressure_switch

http://www.fixya.com/support/r3691134-pressure_switch_adjustment_water

http://www.fixya.com/support/r3695577-jet_pump_jet_water_pump

on Dec 22, 2009 | Plumbing

1 Answer

I prime the pump, and the sprinkler system does not hold pressure. I have also tried to prime the pump from the intake side. what happens there is that the pump actually begins to shoot water back out the...


You can't prime the pump with the same water source you are trying to build pressure in. Shut off all the water going to the house, use the neighbors hose or have several gallons (maybe 5) to prime the pump and continue priming pump until it starts to build head pressure then plug prime hole.
RJ

Jul 05, 2011 | Flotec Corrosion Resistant Shallow Well...

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I just bought a used Excell VR2522. The guy I bought it from said that it worked great (of course). I did have him demonstrate it to me and it seemed to work fine. The motor started right up and the...


yes you have a bab pump if you want i can get ya one cheper than what most pepole can shoot me a e mail with your phone number and ill callya and price ya one tthanks mickey

Aug 30, 2010 | Garden

1 Answer

Insufficient Pressure From Pump


Take the strainer at the end of the hose on the tank off. Throughly clean it. I used an old tooth brush, then ran hot water through it several times. Also drained the tank and flushed it out 3-4 times with fresh water, then ran fresh water through the pump for several minutes

Hope this helps

Aug 03, 2009 | Fimco Spot Sprayer, 25 Gallon, 3.8 GPM, 45...

1 Answer

Pump spinning but not getting up to speed then shuts off


You have a pressurized system using a pressure tank.This is a case of an air logged pressure tank. Meaning there is more air than water in the pressure tank. The pressure tank must hold 2/3 water and 1/3 air of its total volume. Installed at the tank is the air volume control to take care of this proportion. Should the air volume control malfunction or becomes defective, the air-water ratio is affected. And then,
the pressure tank becomes either air logged or water
logged.
SOLUTION:
1. Shut the power off, and open the discharge line
gate valve to flush the water in the pipe lines.
2. Open the drain plug of the pressure tank to empty
all the water at the pressure tank.
3. Close the drain plug, and put the power on.
4. Start the pump, and set the flow control valve 1/4
open.
5. The pump will normally run.

Send your e-mail for us to know the results, and for
further assistance.


Jul 04, 2009 | Plumbing

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

1 Answer

Not enough water pressure to move upper arms or clean dishes


Recommend you pull the bottom spray arm straight up, then out of the DW.
Remove 9 phillips screws that hold the filter shroud down. Remove the filter and clean/rinse it out.
While the filter it out, grab a flashlight and inspect all over the sump area. Especilly in the area the has the check valve that rotates (Vario motor-driven) to feed the water pressure either to the lower and then the upper arms. Watch out for broken glass! Also, inspect the impeller to see if it is undamaged and spins easily.
Reassemble, then test out.
If problems remain, the the wash pump motor is probably the culprit. Do you get any error messages on the time display?
Good Luck!

Apr 05, 2009 | LG LDF6810ST Stainless Steel Built-in...

1 Answer

Troy bilt pressure washer


You need to replace parts 37 thru 41 on the pump breakdown.

Click this link for the breakdown.

Mar 17, 2009 | Garden

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