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My karcher 5.55 is pulsing even with a new cylinder head fitted! No leaks. Inlet filter is clean, the supply water pressure good and I have bled off any air. Could the problem be the small red valve in the inlet elbow allowing the pressure to drain off?

Answer this Question (1 Answer)

  • Ditto, it was a tiny crack in the control head, which is fairly individual to the model and quite expensive. (But much cheaper than a new K5). Now working just lke new. Not sure which valve you are talking about, but if it's in the high pressure system and is leaking, yes it could be By D.R. - Sheffield - 14 July 2015

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Genuine Pressure Washer Cylinder Head Stock Number: ES538413

Genuine spare part for select models of Karcher pressure washers

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