Question about Alfred Karcher K 5.93 M Electric Pressure Washer

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Karcher 5.5 model pressure washer . powers up and motor runs but not pressure at lance?

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Posted on Jan 02, 2017

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SOURCE: When I switch my karcher k4.97 washer on it just

you have an internal crack in the out let head of the machine very comon in thease machine and not expencive to fix

Posted on Jun 18, 2009

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1 Answer

Karcher 5/11c motor runs but no pressure


Firstly make sure the pressure set valve is turned the right way, fully anticlockwise I think.(if it has one I could be thinking of the next model up) and that the lance nozzle is in the correct position not set to detergent or mid point between positions. If that is ok it is probably the switch at the bottom of the machine. If under warranty send it back karcher switches are not good.

Mar 12, 2014 | Toolbank Karcher Hd511cl Hd5/11C 110V...

1 Answer

My karcher k7.85 has lost pressure and the motor runs constantly when switched on ,motor only used to run when trigger pulled in on lance ,there is no leaks. Can any one help please.


Sounds like the pump seals are bad. The manual says to only use these a few minutes at a time, most people try to clean the patio etc with them, run them too long, and burn out the pump seals - don't ask me how I know this.

Feb 17, 2014 | Karcher Garden

1 Answer

Karcher 2500ph pressure washer spill valve has been replaced pull wand trigger pressure good for 3 or 4 seconds drops off for a second or 2 goes back to good pressure for 3 or 4 seconds drops off again for...


If you have a Karcher then you should always post your machines barcode.

full article on nozzles :
http://repairshed.blogspot.com/2013/09/pressure-washer-lance-nozzles-what-you.html

The spill valve operates at approx 20% higher than specified pressure washer operating pressure. If you have any lance issues then the pressure could be running higher than specified (machine running at same pressure as spill valve operation pressure)

your machine produces a fixed flowrate of water (maybe 8 litres per minute) and your nozzle is a fixed size. the diameter of the nozzle determines the back pressure. A piece of debris could further close your nozzle orifice and increase the back pressure. Using a new lance that has the wrong nozzle fitted can also cause this issue.

The karcher barcode is on a silver sticker and is usually 15 digits long. Example 156987400000123 is actually model 1.569-874.0 and serial number 00123....

Aug 15, 2013 | Garden

1 Answer

Karcher K2.94 intermittent pumping and buzzing


try the machine with the lance removed from the gun.

buzzing is usually the noise made by the motor when it cant turn. if the pump start to pruduce pressure but the pressure builds up too high then the motor will stop turning... faulty lance or faulty spill valve (dump valve)

If you have a Karcher then you should always post your machines barcode.
The karcher barcode is on a silver sticker and is usually 15 digits long. Example 156987400000123 is actually model 1.569-874.0 and serial number 00123....

Aug 05, 2013 | Garden

1 Answer

I have a Karcher K3.540 pressure washer. Won't take up detergent and motor pulses ever second if vari-lance increased towards maximim. Motor runs ok at lower pressure but can take 1min to start wh


This fault is within the control head, under the detergent valve is a small spring loaded valve that acts to induce the detergent, this will have failed, the shaft of the component breaks off the disk base leaving a small hole in the centre of the disk. This is enough to allow pressure past the component. The machine will pulse when operated and will not induce the detergent. I've looked everywhere to find this part as I have a karcher with the same fault.

Jan 22, 2012 | Karcher Garden

2 Answers

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...


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

Feb 01, 2010 | Honda Karcher G2400HH-R Pressure Washer

1 Answer

Karcher Motor Pulese On and Off


hi mark, you do have a problem with the lance.
you need to disconnect the lance and straighten a paper clip and insert down the nozzle end.
use the machine to wash the dirt in the nozzle backward down the lance.
Dirt only in nozzle end.
if still no good, purchase some nozzle cleaners and file out nozzle very slightly.

Jun 29, 2009 | Garden

1 Answer

Motor cuts on 2-3 seconds and then off and repeats this pattern


There are several possible causes of this problem. The three simplest to check are: 1. water supply is not sufficient, 2. water inlet strainer is clogged, 3. nozzle in the spray lance is partially blocked. After those, the most likely problems are internal and will probably require professional attention.

May 13, 2009 | Karcher K2.26 Electric Power Washer

2 Answers

I have a Karcher 3.99 Pressure Washer. The motor appears to be working and water is passing through the machine when turned to the detergent application setting. However when the lance is tightened to turn...


Hi I have a karcher 3.99 the motor comes on and water comes out however thre is no pressure i have tested the lance on my brothers washer and this is ok what is wrong

Feb 21, 2009 | Karcher K 5.85 M Electric Pressure Washer

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