Can a Shaver Light cum socket be connected to the Earth instead of the Neutral ?

[rojroj]

Spot On. There is a junction box behind the Extractor Fan Switch and the Neutral there was not connected.
Connecting that completed the circuit and I can see 245 V across the Live and Neutral of the Shaver Point now.
However, the Extractor Fan is not working, which could be due to the fact that I left the yellow (with the Red Sleeve) disconnected in the Pull Cord Switch (as shown in yesterday's photos). I guess that is the wire that signals the Extractor Fan to switch On/Off when the Main Light is On/Off. I'll connect it and check.
I'm uploading the photo (Black Wire with a bit of White Paint was not connected).

 

[Iggifer]

It could be, but you seem to be one cable short in your pull cord (permanent live feed)

It would lead me to believe you have a junction box somewhere that joins the permanent live from the circuit to the fan feed and the pull cord, but this is somewhat illogical.

I would test to confirm that the red from the 3C+E is indeed permanent live, and both that the yellow has continuity from there to the fan and that the other red in the switch is the switched live.

 

[rojroj]

One of them is permanent Live (Tester glows).

 

[Iggifer]

Well yes that's a given. But you need to prove the other two points, with a multimeter.