Question about Karcher K2.26 Electric Power Washer

1 Answer

Motor runs constantly with low pressure.

Unti is out of warranty and from the manual lists part no. 1.423-954.0

Immediately when plugged in to power and after the ''RESET'' on GFCI is pressed the motor turns on. This is regardless of the power switch being ''OFF'' or ''ON'' on the side of the unit OR regardless if the gun trigger is being pulled. When the power switch is ''ON'' and trigger is pulled, the pressure from the nozzle is less than 50% of normal.
I remember the unit wouldn't make a noise until the switch was turned to ON. And only then, it would run a very quick pressurizing cycle and then shut off until the trigger was pressed.

I found a 90850340 K-Switch from an online parts store but not sure if this is the cause of the issue or not. I have completely taken off the housing and taken a look into the electrical housing box but I'm at a loss for what the crux of the issue is. Please help!

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 2,176 Answers

What you described I would think that it a switch problem, I would go to Karcher.com and order an original part for this and start over with the electrical portion and then go from there.

Posted on Jan 23, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Dealer list in zip 32162


Motor seized up! You can try turning it manually. If it moves freely then yes motor has burnt out! If it has resistance, try turning it until it moves freely then try to run the washer! Best of luck

Sep 25, 2014 | Karcher K3.49M 1,800 PSI 1.5 GPM Electric...

1 Answer

Constant pressure


Some of these machines require you to hold the spray handle trigger in the open position while starting the motor, once it is running let the trigger go and it should run on bypass

Apr 11, 2014 | Craftsman 2500 PSI Briggs & Stratton...

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 Pressure Washers

1 Answer

Pressure release valve constantly spraying


take the pump apart and clean the valves and seals

Aug 03, 2012 | Pressure Washers

1 Answer

The motor keeps cycling on and off (about twice every second) when the pressure trigger is not operated. The unit seems to supply plenty of water pressure when trigger is operated.


The motor is holding pressure in the line.
Check the manual.
I don't think it is supposed to cycle that much.
If it's not designed to do that, then there is a seal or a bearing that is leaking.
It's letting water pressure escape the hose by letting water seep back into the pump.
The motor is pushing more pressure into the line to keep up with the internal leak.
Two times a second seems like a lot, and the noise is probably annoying.
If the unit is new, take it back.
If it's doing the job, run the equipment until it dies, or else take it for repairs.

We had a similar problem with a paint sprayer.
Paint sprayers also hold pressure on a line, except the fluid is paint instead of water.
When the machine sensed a loss of pressure, it would cycle once to restore pressure.
After a while it was cycling constantly, just like your machine.
Working indoors with the constant noise was a nuisance.
I had the machine rebuilt, and used it for another year before buying a heavier machine.
I don't know if there is a business that rebuilds your equipment, or how hard parts are to find.

Oct 27, 2010 | Karcher K2.26 Electric Power Washer

1 Answer

Low pressure from wand


where do i get a washer for the wand?

May 21, 2010 | Simpson PS2600 PowerShot Commercial-Duty...

1 Answer

Low engine oil how do u reset it on gx160 honda pressure washer


how do you reset what?if the engine oil is low you top it up to the bottom of the filler plug hole, just so it tries to run over ,then tilt the motor back slightly and put the filler plug back in,

Sep 06, 2009 | Pressure Washers

2 Answers

New Karcher pressure washer won't start


replace the fuel carburetor filter and, or, your fuel tank filter

Aug 31, 2009 | Karcher 2500 PSI Pressure Washer

1 Answer

My Simpson Water Shotgun shuts down about a minute into the wash


Have you checked the oil level? Some engines have a sensor that shuts it down if the oil is too low

Jul 16, 2009 | Simpson PS2600 PowerShot Commercial-Duty...

1 Answer

Pressure Washer problem


If it has the same good compression it did when new, replacing the carb will probably fix your problems. Be real sure about the compression, an engine with low compression and a funky carb might just as well get replaced.

May 10, 2009 | Pressure Washers

Not finding what you are looking for?
Karcher K2.26 Electric Power Washer Logo

404 people viewed this question

Ask a Question

Usually answered in minutes!

Top Karcher Pressure Washers Experts

John Trevino

Level 3 Expert

1378 Answers

andy just round the...

Level 1 Expert

47 Answers

EugenesDIYDen
EugenesDIYDen

Level 3 Expert

479 Answers

Are you a Karcher Pressure Washer Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...