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Karcher K2 switch problem

Joined
9 Oct 2025
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United Kingdom
Hi,

I have a K2 pressure washer and need to change the power 'on/off' switch.

I have bought a new switch but can't seem to fit the switch into its retaining housing as it seems it can't fit over the 'white' plastic protrusion (see attached photos). The swich should just 'click' into place but when installed, the switch no longer turns on or off with the plastic switch lever.

Do you have any advice on fitting please?
 

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Oh yes...first thing I did of course. I still have the 'old' switch but when I fit it, it seems to fit over the 'white plastic' extrusion (shown in the photo) but then the switch does not operate (ie turn on/off by breaking the contacts inside the simple switch) as it seems to be prevented from moving by that white plastic part...so I'm a bit confused and don't have a parts diagram to show clearly how the switch fits....very frustrating a sit seems such a simple part....
 

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