I've got an extractor fan in my bathroom that is wired into the lighting circuit, such that it comes on when the lights go on and then runs on a timer when they turn off. The light switch is a pull cord in the bathroom. The extractor is in the loft and also has a triple pole isolator switch in the loft. I'd like to rejig this a bit such that I can have a second pull switch in the bathroom that acts as an override to the fan coming on automatically when the lights go on. The bathroom has a window, so the fan is not necessary.
I think that I need to add the pull cord switch such that it interrupts the permanent live into the fan. This way, when the switch is closed, the fan will come on with the lights as normal, and whenever the switch is open, the fan will never turn on. I intend this to also let me use the 2nd switch to turn the fan off instantly at any point.
I could do with some advice on how to wire this. I know that I need a 2nd pull switch, but what else? I'm intending to leave the existing isolator in the loft in place.
Thanks in advance!
I think that I need to add the pull cord switch such that it interrupts the permanent live into the fan. This way, when the switch is closed, the fan will come on with the lights as normal, and whenever the switch is open, the fan will never turn on. I intend this to also let me use the 2nd switch to turn the fan off instantly at any point.
I could do with some advice on how to wire this. I know that I need a 2nd pull switch, but what else? I'm intending to leave the existing isolator in the loft in place.
Thanks in advance!