i want to be able to switch a roof fan (not in the same room )on from a toilet when it is occupied but also the same fan will be used for another toilet within the same building and must be able to be switched on from there as well

dave ravenscroft, June 2007

You need to use a 2 way switching system where the power is transfered to each of the switches. You need live feed to one of the switches (top) and a switch wire to the fan (brown) from the other switch (top) between the two switches u must have strappers a pair of brown cables. 1.5mm 2 and you need a neutral to your fan and a permanent live feed if a timer model.

Tony C, Electrician , Dublin, Ireland., July 2007