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Karcher k3.99 pressure washer

The dirtblaster attachment is not cleaning properly, it appears to be rotating too slow as it is leaving rings as i clean then it decides to spray with a fine jet. i have the hose on full so im puzzled as what else i can do. do i need a new lance or is it something more technical. thanks karl

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  • Anonymous Apr 26, 2009

    me too, probably the pump is out\?

  • Anonymous Apr 29, 2009

    I lost the manual and need to find operating instructions for the k 3.99



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  • Washing Mach... Master
  • 560 Answers

Go to the manufactures website for the answer as this is a washing machine help site eric

Posted on Jan 20, 2018


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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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SOURCE: Karcher Power Washer Problem

I had the same problem with my Karcher. The recall was lifted Aug. 0f 2007. Tried numerous people at Karcher....head of Customer Service, vice president, etc. No one returns telephone calls not even cutomer service....poor, very poor customer service. Thinking about calling Germany.

Posted on Jun 14, 2008

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SOURCE: White-Westinghouse washer will spin but water will not spin out

no its a remote electric pump,no belt.its ither blocked or fail.cut power,pop top remove frount cover an you will see pump.white or tan.remove hoses[watch out 4 water and check 4 blockage

Posted on Jan 02, 2009

  • 72 Answers

SOURCE: Cant change the high pressure hose on a Karcher

On the Kärcher, you have a bayonet mount at the base of the tip end of the pistol grip. This is where you attach different types of nozzles and gadgets after having removed the existing sprayer tube. Just push in and turn a quarter of a turn, then you pull it off the pistol grip. The hose is possible to remove from the machine as well, an ordinary threaded mount but since you need the pistol grip to regulate on/off this is probably not what you want to do. If the telescopic wand is made by Kärcher it should be very easy to snap it into place just like when you removed the sprayer tube/nozzle. If the attachment was made to fit Alto washers there is an inexpensive adapter that works very well. Good luck!

Posted on Jun 03, 2009

  • 3 Answers

SOURCE: need help getting to an cleaning stuck unloader

The cart body makes this process a little confining but it can be carried out without removing the pump from the motor.

Diagram courtesy of: pressureparts.gif


  1. Refer to assembly 9 in the diagram. Remove the splash cup by working the push-on nut off the top of the cup.
  2. Remove two Torx fasteners (13) and twist the nylon valve retainer gently while pulling up to remove it. Be aware of the small parts under the retainer.
  3. The objective is to get the valve (12) out of the bore (A). Connect the hose and wand to the pump, make sure the wand valve is closed. Connect the water supply to the pump and turn on the water flow.
  4. Place a shop towel over the valve bore and with the throttle in the off position, pull the start cord briskly several times to see if enough pressure builds to pop the valve out of the bore. If not, set the throttle to low and start the engine. Unless the valve bore is really corroded, this should pop the valve out.
  5. If this process fails, you may have to unmount the pump and employ a more brutal approach that will likely require a new valve.
I have worked on my washer for the last 2-3 years to keep it going but I've opted to replace the pump this year. My replacement is an "AR RMV2G25D" (~$170) .

Posted on Jun 04, 2009

  • 93 Answers

SOURCE: losing pressure 2-3 min vacuum hose is attached to skimmer

de filters clog very fast i suggest put vac in pool put hose over pool attach a wet vac to get water out of hose remove wet vac and vac saves de and water

Posted on Jul 11, 2009

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