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How can I fix my Karcher KB2020?

Machine is now showing reduced jetting power and water is leaking from front facing grill.
Neil mac, April 2011
I had the same problem.I opened it up and it was a cracked cylinder head on top of the 3 pistons behind the outlet connector.It is molded plastic and could not get a replacement.I was considering epoxy glue but doubt it will hold the pressure.

Theo Antreou, September 2011
Did you get an answer to this as I have exactly the same problem.

simon, May 2011
link Click here to see other fixes for Karcher.