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Karcher K 2.26M 1.601-602.0 ; running it at pressure,all of a sudden loss of water pressure....looked at unit,water coming out by on/off switch. Removed back,removed whole unit from yellow body case.Turned unit upside down mistakenly,water/oil substance came out by fan (or very light weight oil....did not look like when water is in oil,ie:milky color..was darkish grey leaning towards black)immediatly flipped back right side up. A) How did it lose pressure? A bad 'o' ring seal,a bad seal for one of the pistons? B) Where did the oil come from? Internal,meaning another bad seal?Do I need to add oil if this can be repaired? Put washer back together,did a quick "run" check.Unit still runs fine,but no pressure ...water comes out of wand,and still comes out by on/off switch. Thanks!

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 92 Answers

SOURCE: Can't fine where to put pump oil in

Dear glenoaks06,
I handled various Karcher washers, but the 2500 I never came across it. Just the same I will give you a few hints and maybe the solution for the problem. When the oil is milkey this means it has water in it. This means that there are faulty seals for sure. Now in many Power Washers the compartment where the oil is located is filled with oil prior to assembling the head unit that contains the pistons. So you have to take apart the the complete head change all seals( HP seals, LP seals and OIL seals). There are pumps that take multi-grade oil(15/50) and others 90 grade oil. If your pump is fan cooled, it probably takes 15/50 oil. Now one of the main biggest problem of water in oil is Faulty and Scratched PISTONS.
So when you have the pump apart....check condition of pistons. It is useless to change seals if pistons are damaged.
Now one thing regarding your problem, is that you have to put together the head with the pump upside down, so that you can fill the compartment (where the pistons are pushed by the swash plate), with OIL, before you put back the complete head with good pistons,springs,seals, valves...etc..etc. These few hints are relevant to quite a number of Karcher washers.
Regards,
Fulltech.

Posted on May 22, 2009

  • 92 Answers

SOURCE: Karcher 211 - no motor action

Dear Tigger82 (also montaver2000),
This explaination is relavent to various Karcher models, especialy your model. When you are using the machine with the gun open....presurised water comes out of the lance. When you close the gun, the machine stops. This happens by means of a Spill Valve or often called the Control Valve. When the gun is closed, this spill valve cotracts with built up pressure and at the same time works on a miro switch which cuts the electricity....and thus stops the electric motor. Now in many cases when the gun is again opened, this spill valve sticks and keeps the electric circuit closed.
In all cases you must open the cover, and locate this spill valve. Sometimes it is easy to see a micro switch on it. If you remove the miro switch from the spill valve the motor will for sure turn.
Now the spill valve gets stuck for many reasons. One of the reasons is that you leave the machine under pressure for a long time and even store away the machine with pressure still in the system. A spill valve also gets stuck due to detergent. I sometimes service the spill valve and lubricate with special solicon grease. But the best way is to change the spill valve with a new one. So in a few words, the spill valve is stuck and leaving the microswitch off. So the electric motor cannot turn. One final hint is that sometimes the spill valve is difficult to remove. So all one has to do is attach water supply and switch on the pump. With the pressure produced the spill valve will be pushed out. In my oponion this job must be done by a person who knows what he is doing. Carefull that you have safety electrical breakers. See that you have safety shoes, safety gloves and eye protection.
Regards,
Fulltech.

Posted on May 26, 2009

  • 2 Answers

SOURCE: Karcher K 2400 HH Pressure Washer no pressure

http://www.landanorthwest.com/documents/instructional/spill_valve_instructions.pdf

Posted on Jun 05, 2009

  • 156 Answers

SOURCE: Pressure Washer quit running

I have owned four of those units. Every one of them did what you are experiencing or just wouldn't give me any pressure after only a few uses. The company was certainly no help. I gave up after four and bought a heavier gas model from Lowes. Hope this info helps.

Posted on Jul 06, 2009

  • 61 Answers

SOURCE: i need to replace the high pressure outlet on a k2-26m elecreic

if you contact Karcher they will tell you where your nearest supplier is located. try this link.
http://www.karcher.com/int/contact.htm

Posted on Sep 20, 2009

Testimonial: "thanks much, will contact them."

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