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Pressure Washer Microswitch Stock Number: ES538279

Genuine spare part for select models of Karcher pressure washers

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Manufactured by Karcher

(This part fits select models)

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Pressure Washer Microswitch

If you're looking for a new microswitch for your pressure washer, then eSpares may just have the part you need to restore your pressure washer to its former best!

When your switch becomes unsuitable to use, you could find that you are held back when it comes to getting the patio cleaned. Luckily eSpares is here to help; we have this genuine spare part made by Karcher.

Once fitted to your pressure washer you will be back on the road to recovery, able to tackle getting the decking and patio in tip top condition thanks to the spare you have purchased!

This is a genuine spare part for select Karcher pressure washers.

Please check the model fit list to ensure compatibility with your appliance.

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2 Questions and 2 Answers

Hi My k4 compact works BUT the normal off function when the lance trigger is released is now not stopping the motor /pump ( no flow but motor runs on ) . Additionally the pump pressure seems lower than in the past - Please advise likely parts - - is it this Microswitch and do you have a diagram/general assembly drawing for the K4 compact you could send by email ??

By IAN ABEL - Manchester UK - 17 April 2018
  • Dean from eSpares
    Dean at eSpares says...

    We do not have access to any assembly diagrams, for more help see our video just copy and paste into your browser.

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I have a problem with my washer it does not run evenly and the power motor keeps revving the pressure seems lower than when I bought it brand new, I had to replace the fan blade on the top of the motor last year.

By Joe - Gloucester - 22 March 2014
  • Chris from eSpares
    Chris at eSpares says...

    If the motor 'pulses' while in use as it stops and starts try using a different attachment. If the new attachment pulses the same there is a problem with the auto switch off part of the pump as it is cutting out to soon as the pressure builds.

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Pressure Washer Microswitch

(inc. VAT)