Installing a bathroom extract.. What's wrong with this wiring?

[Irishdumbaas]

Top to bottom it's N/L/S black, brown, grey.

Replacing an extractor that was constantly on for one with a timer & humidity sensor. I just rewired it like for like... But it doesn't seem to cut out & has a red flashing led.

Am i in mortal sangre?

 

[Irishdumbaas]

Btw it's wired straight into the light switch

 

[EFLImpudence]

Can we have a look at light switch wiring?

 

[RandomGrinch]

Have you adjusted the trimmer for the humidity sensor?
If it were set too low, the fan may never turn off.

 

[Murdochcat]

If the humidity setting is too high it may never switch on

Leave it a few days to acclimatise

 

[Harry Bloomfield]

Am i in mortal sangre?

How do you know it hasn't switched off? No good standing near it, waiting for it to go off, you need to go out of the room and close the door on it, then see if it stops.

 

[JohnD]

Top to bottom it's N/L/S black, brown, grey.

Electricity does not see colours.

There is also a bare wire poking out of the sheath, which might be an earth

Have you a multimeter or other tool to determine what each wire is?