Question about Honda Karcher G2400HH-R Pressure Washer

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Honda 2400 psi before it went out i cold tap the end of the wand on the ground and the pressure would return now when pull the trigger there is no pressure only a fine spray .its a karcher with a honda motor thanx

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  • Bernie Goncalves May 11, 2010

    it sounds like you have a bad pressure solenoid valve,this is how it knows when to turn on the pump pressure .you can search the web under karcher and you will see the valves for about 60 dollars.

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Hi,
there is a small ball bearing inside the nozzle on the end of the lance , this can get jammed or missaligned and the nozzle orifice can get blocked , clean this or replace the whole lance with another 200 Bar lance .

hope this helps

Posted on Feb 02, 2010

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Pour some 3 in 1 oil in the pump inlet without hoses connected. Fire up and shut off in a few seconds, repaeat a few times. Hook up water hose not the wand hose, blow oil out. In the wand itself, spay WD40 in the inlet and blow through it making sure the trigger works. Mines been running years!

Posted on Jun 29, 2010

  • Zoli Semanate
    Zoli Semanate Jan 14, 2015

    Also if you loose pressue and the bove doesnt wortk. Its your unloader valve sticking. Pop the plastic umbrella thing off. Siply pry off the big rivet in the plastic. Unscrew the top and pull barrel thing out. Straighten shaft if bent, clean, and grease barrel with waterproof grease if available (Bel Ray motorcycle), Re assemble. Should work as new. My machine running top shape 14 years now.

  • Zoli Semanate
    Zoli Semanate Jun 12, 2016

    Follow up: My machine is now 16 years old and running like a champ. Ive had to replace O-rings in wand hose and above mentioned greased unloader valve that's it. I use Mobile 1 synthetic in motor. Like a champ.

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To prevent this problem from reoccuring use a pump guard additive.

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