My husband has removed an extractor fan with built in humidifier. The new one is exactly the same just a different model. The wiring we have is black, grey and brown. On the new model we have they have neutral, switched live and permanent live. We have tried wiring it up but the fan is not working, what have we done wrong please. Obviously a wire in the wrong place I think.
Extractor Fan
- Thread starter Graysy
- Start date
Sponsored Links
How have you wired it?
Have you a fused connector for it on the wall somewhere?
Has the fuse/circuit breaker tripped?
Have you any means of testing the wires to see which is live?
Probably as you say, it is not wired correctly.
The black and grey ought to have sleeves on them to identify what they are i.e. brown for live and blue for neutral.
The easiest way forward is to identify what wire does what with a multimeter set to 240v> AC. (Place then in terminal block first before powering on so you don't have readily accessible live copper.)
Then it is a case of black lead to earth, red lead to each in turn noting the readings. Then operate the switch and do the same again.
From this you ought to be able figure out what wire does what.
If you are not competent in using a multimeter then you need to find someone who is i.e. an electrician.
The black and grey ought to have sleeves on them to identify what they are i.e. brown for live and blue for neutral.
The easiest way forward is to identify what wire does what with a multimeter set to 240v> AC. (Place then in terminal block first before powering on so you don't have readily accessible live copper.)
Then it is a case of black lead to earth, red lead to each in turn noting the readings. Then operate the switch and do the same again.
From this you ought to be able figure out what wire does what.
If you are not competent in using a multimeter then you need to find someone who is i.e. an electrician.
Ah!
Did the old fan have a timer?
And did it come on with the light or did it just rely on the humidistat?
Did the old fan have a timer?
And did it come on with the light or did it just rely on the humidistat?
Sponsored Links
We do not have any means of testing the wires and no nothing tripped at all.
Will we be ok leaving it how we have wired it up until the morning now as we will be in the dark trying to change it.
Yes it did have a timer and came on when we switched the light on. It carried on when the light was switched off until it timed out or humidity was ok.
The reason we put black in the neutral was because there was a black feeding into it the other side from the fan. So what you are saying is ignore that and try grey.
Sorry I meant black to neutral, grey to live switched and brown to permanent live.
Thank you will try that tomorrow. We do have an isolator switch outside the bathroom will turn that off tonight.
That's very illogical.
I know grey is used as neutral (to disassociate black as neutral)
However, surely Brown should be live - because it is
and therefore Black should be switched live (as it frequently is with old colours).
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
