Great, thanks for clarifying Terry.
I shall swap the switches at the weekend and feedback on how it goes.
Thanks also to others over their concerns, my fault for not explaining the setup correctly, apologies for that.
Sorry, where have I said it has failed? It hasn't - I am just updating the switch to a modern day one after decorating. The shower is fed back to the Consumer Unit on it's own circuit.
There is a pull cord for the shower and another pull cord for the fan.
Thanks for the speedy reply!
The fan doesn't have a timer, goes off when you pull the cord. The shower is an Aqualisa Quartz Electric 10.5 shower.
So I assume you mean put 1 red wire in one of the L1 and 2 red wires in the other L1? Same for N - 1 black wire in one of them and 2 black wires...
All,
I have purchased a new shiny isolator switch for our ensuite - it powers the electric shower and fan.
The old is a different layout to the new.
NEW FRONT:
NEW REAR: (Between the L2's it says "1 way use L1")
OLD REAR:
The old one has L1 (one red wire), L2 (two red wires), N1 (1...