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Ariston Genus 27 3way flow microswitch

Postby thedcman » Tue Aug 11, 2009 12:38 pm


Can anyone tell me how to remove and replace the 3way micro switch on an Ariston Genus MFFI combi boiler.

I would attach a picture showing it if I could.

I have been told that it is clipped on, but I do know whether I have to push or pull it up or down, backwards or forwards to unclip it, and i do not want to do it the wrong way and do further damage to my boiler.

I want to check the switch myself before I call an engineer.

The service manual does not tell me how to do so.

many thanks
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