Joining cables in wall

We haven't asked how this isolator is wired.

I, at least, have assumed it is a three-pole isolator but does it isolate the light as well.
How is the fan controlled? By this switch or by the light?

Why not do away with the "isolation" part and just swap it for an ordinary switch that controls the fan - in one way or another?


The fan and its light go through a three-pole isolator. the fan and its light switch on when the isolator is on and then the light switch is put on, this switches all bathroom lights and the fan on. when the lights are switched off the fan is then on a timer.
 
Sponsored Links
Twhen the isolator is on and then the light switch is put on, this switches all bathroom lights and the fan on.
And when the isolator is off, no lights in the bathroom work.

That's not the way it's supposed to be wired and it defeats the purpose of having an isolator.
 
And when the isolator is off, no lights in the bathroom work.

That's not the way it's supposed to be wired and it defeats the purpose of having an isolator.

no when the isolator is off the shower light and fan don't work, the others do. as its supposed to.
 
OK - sorry. The way "when the isolator is on and then the light switch is put on, this switches all bathroom lights and the fan on" was worded misled me.
 
Sponsored Links
If I turn my isolator off neither the fan or lights work. Same in the downstairs WC. Isolator isolates everything.
 
Well that's definitely not the way it's supposed to be wired and it really does defeat the purpose of having an isolator.
 
In the days before (and, admittedly, after) TP iso's, bathrooms were wired through a SFCU. The loop would feed the FCU and the bathroom lights and fan would be fed from the load side, with an SP switch to trigger the fan and obviously an SP switch for the lights.

This gave the option to have the lights on without the fan (eg at night) or the fan on without the lights.
 

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.


Are you a trade or supplier? You can create your listing free at DIYnot Local

 
Sponsored Links
Back
Top