Bathroom extractor fan

[Lindz69]

I purchased a new fan for my bathroom. The old fan is permanently on even when light is off so I purchased a new one with a timer the wiring on old on is brown, black with brown sleeve grey with blue sleeve and Earth. I put the brown to the L, then the grey with blue sleeve too the N and the black with the brown sleeve to the T1 but it does not work please help see pictures of old fan and new fan. The new one is the one with green connector block. There is an isolating switch outside the bathroom and a switch on the wall that operates the light but I am stumped.I have also added a picture of isolating switch

 

[ericmark]

The normal first step is to test, I use one of these but there are other methods, I see nothing wrong with what you have done, so what have you got to test with?

 

[Lindz69]

I have a multimeter.
The old fan never worked by the light switch as it was just on permanently if I wanted to turn off I used the isolation switch above the door. All the fans in house are permanently on light switch on the wall does not turn them on or off only the isolation switch above the door. so not sure how to wire new fan with timer.

 

[Lindz69]

The normal first step is to test, I use one of these View attachment 299988 but there are other methods, I see nothing wrong with what you have done, so what have you got to test with?

I have a multimeter.
The old fan never worked by the light switch as it was just on permanently if I wanted to turn off I used the isolation switch above the door. All the fans in house are permanently on light switch on the wall does not turn them on or off only the isolation switch above the door. so not sure how to wire new fan with timer.

 

[jj4091]

Your old fan appears to be the type that has a timer the same as your new one. If it is only operated by the switch above the door it will never go off without switching it off there. The timer just keeps the fan running for a set time after the fan is switched off. You need supply from the light switch to the isolator (presume you mean fan isolator switch rather than a single pole switch) if that is how you want them to work.

 

[Lindz69]

No old fan stays on no timer when I wire new fan in it will not work at all and I have wired same as old fan. See picture of old fan wires and new fan with green connection block and picture of isolated switch

 

[EFLImpudence]

Many an hour wasted over faulty new products.


Do you have 230V between L & N and T & N

Edited.

 

[Lindz69]

I don’t think it’s the product as took one back and they replaced it but that one was the same I think it’s got to be the wiring when I connected the old one it works but new timed one will not see pictures of old fan new fan and isolator switch.

 

[ericmark]

Do you have 230V between L & N and L & T.

That was my thoughts, but since did not work on light switch maybe not connected to light switch and if no trigger on T then it would never start.

 

[Lindz69]

There is a black wire in the isolation switch but not connected ? Did you see picture of isolation switch

 

[RandomGrinch]

There is a black wire in the isolation switch but not connected ? Did you see picture of isolation switch

Yes, the black wire isn't connected.

With your multimeter, (carefully) check that the wires in the L2 terminal (of the isolator), become live, when the light switch is turned on.

If they do, connect the black wire to the empty L2 terminal.

 

[EFLImpudence]

It is said to be the same as it was for the old fan.

 

[EFLImpudence]

Do you have 230V between L & N and L & T.

Edit - that should, of course, be L & N and T & N.

 

[Lindz69]

Yes, the black wire isn't connected.

With your multimeter, (carefully) check that the wires in the L2 terminal (of the isolator), become live, when the light switch is turned on.

If they do, connect the black wire to the empty L2 terminal.

That’s it all works that was the problem thank you so much I really appreciate it many thanks

 

[Lindz69]

All sorted I really appreciate everything thanks you.