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KB4040 not running properly

Hi, we have a KB4040 which has suddenly started playing up. One minute it was OK then it started to run a bit like a car running out of fuel. It will start to fade then vroom and then fade. 20 or 30 seconds later it would do it again and the time inbetween got shorter and shorter and now it is doing it all the time. Looking online a forum (Tyresmoke) suggests the cylinder head is cracked. Would this be your thoughts, also? Would (stock No 538427) solve this problem or would I need other parts? The pump hasn't been dismantled yet. Many thanks

By Genealogist - Preston, Lancs - 30 May 2010

Answer this Question (1 Answer)

  • eSparesMalindi from eSpares
    eSparesMalindi at eSpares says...

    Unfortunately we cannot give out technical advice. Please contact Karcher or a technician for support with this problem.

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Pressure Washer Cylinder Pump Head Stock Number: ES538427

Genuine pare part for select models of Karcher pressure washers

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