Question about Karcher PSI Electric Pressure Washer

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I have a karcher k3.91 which cycles on its own every few seconds and then leaks water from in side in unit, any ideas anyone on how to fix it?

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  • Chris Bowden
    Chris Bowden Jun 22, 2009

    ok thanks for getting back to me, firstly without taking any covers off it leaks from the left side wheel looking at the machine from the front, after taking covers off it appears to be coming from somewhere around the on\off unit, but it happens so quick and comes out at such force its really quite hard to tell, any way of making it easier for me to locate the exact place of leak? man thanks chris.

  • Chris Bowden
    Chris Bowden Jun 23, 2009

    Hi there and once again thanks, I have now found the part thats leaking its the piece that the inlet and outlet both connect too, via the sliding clips, there looks as though theres a hair line crack in it, any ideas where i can get from and roughly how much would i be looking at paying, many thanks chris..

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  • 12 Answers

Will first need to know where the water is comming from, then yes i can help

Posted on Jun 18, 2009

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  • stephen perkins Jun 22, 2009

    yep, firstly take off the lance, pull triger, then turn the machine on then very slowly shut the triger, this will cause a slow increase in back pressure and you should be able to locate the leak a little easier, its common for the out let head to crack from around the bypass housing ( the bit that switches the machine down) just a short distance back from where the chemical tube fixes on

  • stephen perkins Jun 22, 2009

    yep, firstly take off the lance, pull triger, then turn the machine on then very slowly shut the triger, this will cause a slow increase in back pressure and you should be able to locate the leak a little easier, its common for the out let head to crack from around the bypass housing ( the bit that switches the machine down) just a short distance back from where the chemical tube fixes on

  • stephen perkins Jun 23, 2009

    yep, cleanstuff.co.uk, think its around £20,

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