Wiring a fan and a light so they operate at the same time?

[woodywoods12345]

Hi,

Im new here, so bare with me!

I wonder if anyone can help? In my bathroom my extractor fan used to turn on at the same time when you pull the light cord.

Today, i put a new light up and when i removed the base there was 6 wires coming from the ceiling, one set of 3 had black, blue and a yellow/green wire. The other set of 3 had red black and yellow/green.

I wired the light using the black, blue and green wires. However, now only the light works, so im left without a fan!

How do i manage to get them both working? Do i have to wire both red wires to the one red wire in the light fixing?

The light fixing itself only has 3 sockets (im not sure of the technical term)

Sorry if this doesnt make any sense - as you can tell im new to electrics!!

Can anyone help? Thank you!

(ps thanks for having me! )

 

[cagedanimal2010]

i think its building regs, if theres no window a iso is a must, but if there is a window you can come straight of the light

 

[telectrix]

sorry, was thinking of run-on fan with permanent live

 

[cagedanimal2010]

imo i allways put and iso and run-on fan. always for the best i think!

 

[telectrix]

like to do that myself. however, one job the client wanted fan on separate switch in case somebody turned it on and the noise of the fan woke her up ????????????????????????????????

 

[cagedanimal2010]

lol! things that clients say do make me laugh!!!

 

[SEC-Tom]

i think its building regs, if theres no window a iso is a must, but if there is a window you can come straight of the light

Thanks thats exactly what I meant maybe I didn't explain it correctly.

I always install a 3 pole isolator outside of the bathroom anyways, PL, SL, N. Feed from the light to isolator, isolator to fan. Simple.

 

[Ohmyword]

Thanks that's exactly what I meant. Maybe I didn't explain it correctly?

I always install a 3 pole isolator outside of the bathroom anyway, PL, SL, N. Feed from the light to isolator, isolator to fan. Simple.

I hear what you're all saying. I don't dispute that an isolator is required esp. for the over-run fan because there is no actual switch in circuit for the "permanent" live.

My query is, still - would you/should you fit the isolator in the roof-space (as well as an isolator control in the room) if the fan is an in-line model and installed out of the bathroom area? Thereby giving you sight and control of the isolator when maintaining the fan unit. (I realise we can "lock-off" the circuit.)

My example is a student let property with the in-line fan in the loft area. The landlord doesn't want the fan switched off by his tenants (or not switched on when required).

i.e. Is there a requirement to have an isolator in a "vented" room even though the fan unit is fitted remote from the room? (I would install an isolator anyhow - in the roof space).

 

[giggsy]

I would just mount the isolator in the loft next to the fan. No need for an isolation point downstairs as well surely.

 

[Des 56]

The fan wiring is in the loft,its only the vent and perhaps pull cord that is in the bathroom

Its for maintenance of the fan and is suitable in close proximity to the fan in the loft
Another isolator in the bathroom ? No



Why would you want the isolator remote from where it is sited

 

[SirKit Breaker]

a bit touchy there aren't you. when you've been in this trade long enough, a bit of sarcastic wit is the norm.

I couldn't get through the day without it.....even if I am the subject of it! now and again.

 

[telectrix]

i thought i saw a light at the end of the tunnel but it was some ******* with a torch and more paperwork

 

[Ohmyword]

The fan wiring is in the loft,its only the vent and perhaps pull cord that is in the bathroom

Its for maintenance of the fan and is suitable in close proximity to the fan in the loft
Another isolator in the bathroom ? No



Why would you want the isolator remote from where it is sited

Hi Des, thanks for your help. This is the trouble with the written word mate. When I say the word "remote" (in this context) I meant "not in the room". The fan and it's electrics are in the roof-void, so why fit an isolator in the room? When maintaining the fan, one would be in the roof space and not in the bathroom.
Perhaps if I re-word my previous posting's, last sentence.

"i.e. Is there a requirement to have an isolator in a "vented" room even though the fan unit is fitted out of the room?" (I would install an isolator anyhow - in the roof space).

There will be a cord-pull in the bathroom to operate the light point and to energise the fan. It's only the 3-pole isolator I am enquiring about

 

[telectrix]

Now, here's a thought------ 3 pole isolator for fan---- purpose, as we all know is to isolate the fan to make it safe for maintenance, because the is a permanent L to it. Standard light fittings, wired " loop in/out" are also wired with permanent L. Why then do we not have a 3 pole isolator to each light fitting? Then all other lights on the circuit could be left on.