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Karcher pressure washer - KB9040 not working - water going through but motor not running. Checked mains, fuse etc..

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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  • 641 Answers

SOURCE: Water Pressure - FH Error

Check first the filters on the inlet water line. Then, if problem still exist - check that the inlet water valve works(it is an electromagnet valve, located at the pipe's entrance to the machine)). If it doesn't work, test that it get power. In case it get power and doesn't work - You can easily open the valve and clean it (from scale or other dirt). Be aware you should disconnect the power cable from machine before doing it !!!! Check as well for valve's coil resistance. In case you have no resistance measurement - you should replace it for a new one. Good luck

Posted on Aug 06, 2007

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hotuna
  • 288 Answers

SOURCE: karcher pressure washer motor surging,then

You didn't say if this is a gas or electric machine. I will give suggestions for a gas model. These small engines have air and fuel filters. check both, as it sounds like its getting bad air/fuel mixture. Also try a new spark plug. If this is electric let me know, I'll new some more info.

Posted on Mar 15, 2008

SOURCE: I have karcher 620m pressure

take off the lance hose and let it run it may be air locked

Posted on May 16, 2008

SOURCE: Karcher Pressure washer

Hi
don't know if this will help, but when I use mine, to start the pressure up I have to turn the nozzle to fine spray then turn it to the power spray and it works every time, shouldn't have to do this but I got it for nothing.

Posted on Jun 05, 2008

  • 14 Answers

SOURCE: karcher hd 5 11/c pressure washer no pressure

Your problem is simply a worn bypass valve on its awy out. It still works enough for mains pressure but can not pressurise when drawing water.

Posted on Mar 11, 2009

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1 Answer

Where s the fuse karcher k2.180


I doubt there's an internal fuse other than in the plug fitted if it has one. Karcher don't expect you to dismantle anything to get at a fuse but if you go online to the main Karcher website check out the parts list this may help identify anything. If it doesn't start and there's no humming noise like the motors struggling to turn then you need an appliance dealer or engineer to check the electrical side. Be careful what you do, water and electricity are a dangerous combination. Check the likely cost of professional help though, it may be more than a replacement washer?

Oct 20, 2014 | Garden

1 Answer

Karcher 2400 psi with honda motor started up big puff of white smoke from exaust it shut off noiw wont start whats going on


I have a john deere 3000psi pressure washer with similar problem. Running fine then a puff of smoke and it shut down. I checked the oil and found it full of water. Not only that but since I still had the water turned on, the water was flowing out of the dip stick tube. I'm trying to find a solution online and will pass any information on.

Nov 13, 2010 | Karcher 2500 PSI Pressure Washer

1 Answer

I own a Karcher 3000 pressure washer. There is no water pressure. I've checked the obvious...hose to house, kinks, attachment is tight....Enging runs, no water pressure.


I had the same problem. On the top of the pump there is a little nickle colored button cap. It is attached on both sides with a screw. What this actually does I don't know but when I took it off with the motor running and put my finger over it the pressure come up. I also discovered that having the motor running and taking the nozzle tip off and pulling the trigger would clear the pump to work until you let of the trigger again. Weird but it works for me.

Aug 06, 2010 | Karcher Garden

1 Answer

Motor running, water supply adequate but when


clean whole water supply and outlet from all debris, clean inlet filter as well. connect water and pressurise washer, pull trigger and wait about 3sec for pump to activate, if pump do not activate adn you have pressure from nozzle as it will be from main, this determines pressure sensor (it is extremelly rare for pump itself) is damaged.

check if you have still warranty,this will qualify as warranty repair, if warranty is expired, pressure sensor need to be replaced.

if you find my advice useful, please do not hesitate to leave your remarks and vote for me, thanx!

Jul 31, 2010 | Karcher 1750 Psi Elec Pressure Washer

1 Answer

Karcher K2.36 Pressure Washer I've just fired up my Karcher for the first time since last year and the motor started running fine, I then switched on the tap to allow the water through and the motor cut...


The water must be switched on, and seen to be running freely from the nozzle for a few seconds before switching on the power - suggest you check the fuse in the plug, and then try the above.

Apr 17, 2010 | Karcher K2.26 Electric Power Washer

1 Answer

Karcher G 3000 BH Engine Pumping Problem


This may not be a motor problem. It sounds like your pump is not working properly and the motor is just following the pump. First thing to do is check for leaks in the pump, wand hose, gun etc. It may also be a blown water seal inside the pump.

Aug 17, 2009 | Karcher 2500 PSI Pressure Washer

1 Answer

Karcher Power Washer that surges up and down with water pressure.


Before you start it up:
1. Disconnect the high pressure hose 2. Connect the water supply and turn on 3. Make sure water is flowing through the pump
Start the motor, run for about 10 seconds and then turn off.
Turn off the water supply, connect the high pressure hose, turn water back on, start the motor and away you go.

May 29, 2009 | Karcher 2500 PSI Pressure Washer

1 Answer

Hi i have inherited a karcher kb9040.it has only been used 4 or 5 times so i dont realy know how it should sound when. water is suplied to it it surges when you pull the trigger you only get the presure of...


hi there!
when you got as good as pipe pressure,you need to accelerate the speed motor to have a good pressurise water for your purpose,the pressure washer has a surge regulating valve as you trigger water gun the pressure blow up,as long
as you pull the trigger on the pressure build up pressure it has also equipt with pressure switch to regulate pressure and for safety purpose.you can also adjust the nozzle by rotating gradually to slim the pressure water out put.have a nice day,don't forget to rate me.thank's

Apr 20, 2009 | Garden

1 Answer

Karcher hd 5 11/c pressure washer no pressure


Your problem is simply a worn bypass valve on its awy out. It still works enough for mains pressure but can not pressurise when drawing water.

Jan 14, 2009 | Karcher K2.26 Electric Power Washer

1 Answer

My Karcher HD 1050 DE has lost pressure, ive had new valves put on it but still has no go in it


could be allsorts. seals worn. ceramic pistons split, inlet manifold split( frost damage), unloader valve sticking, etc etc.

Put mains water pressure onto it and look for leaks, then run machine and see if it increases pressure, if not i would suspect unloader valve sticking.....

Not very familiar with the 1050 but i'm a service engineer for high press cleaning equipment...

Oct 12, 2008 | Karcher 2500 PSI Pressure Washer

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