Fredxx wrote:

snip


If you can't recognise it then definitely get a man in.

The part is most likely:
https://ibb.co/gMBrbsC

Oh yes, there it is on the right! Missed that first time round,
thought it was part of something else. And reasonably accessible too.


Assuming you are taking a photo from below?

https://www.plumbase.co.uk/flow-swit...000043-3529181

As another poster has said I would check using a meter before replacing.


--

Roger Hayter