Thanks again, makes sense as always. If it turns out that It is sending down 12V down to the timer, does it become an issue for the Fibaro Relays to Control? Is there a solution?
The reason I went for the Vent Axia is that the reviews suggested it is by a reasonable distance one of the quietest fans. 14dBA.
If I got a fan similar to yours with just Switched Live and Neutral, wouldn’t it likely have the same set up in terms of 12V being sent to the fan? - albeit to the Switched Live and not the Timer? Or does it appear to only be for fans with Timers, that 12V is sent to the fan?