Question about Karcher 2500 PSI Pressure Washer

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Karcher pressure washer

Washer started to pulse really quite badly.
a blast of water every 1 - 2 seconds.
eventually washer stopped alltogether.
only 3 - 4 years old
and only used 1 - 2 -times a year

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  • hammerobscur Nov 23, 2008

    Washer just began pulsating during operation. Checked all connections - everything seems fine. Any ideas where to start looking for solution?

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4 Suggested Answers

  • 174 Answers

SOURCE: Karcher K2.94 Overheats

Well, there is a switch inside. It is controlled by the valve that allows the pump to go into bypass when you let go of the trigger. This switch may be worn out or the valve that controls it is sticking. It may also be that your motor is just worn out. There is a heat sensor inside the motor (you cannot get to it) that sometimes wears out and trips too easily.

Posted on Jun 23, 2009

jmgldsmth
  • 1869 Answers

SOURCE: new Karcher pressure washer won't start

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

Posted on Aug 31, 2009

  • 608 Answers

SOURCE: karcher pressure washer keeps pulsing when not in

This can happen if the head of the pressure pump has split. You may need a new head, and to stop this happening again, tie the rigger open with a zippy tie. The water will run all time now and automatically bleed any air form the system. When you want pressure, turn it on at the main switch. This will prevent hydraulic hammer, (when you pull the rigge)r, which is what causes the head to split.

Posted on Mar 28, 2010

acehead
  • 107 Answers

SOURCE: My Karcher 2.99 starts and stops, (pulses) when th...

http://www.youtube.com/watch?v=8XDPDhg_acQ&list=UUiF9Qw4CmLuBqWFGanj1KIA&index=14&feature=plcp

Posted on Aug 25, 2012

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