Wiring advice for multi room extractor fan

[Spoon]

??
Wrong unit then Spoon??

Looks like it's not a 'like for like' replacement mate.
Maybe the OP can confirm the data sheet i have posted is the unit he has.

 

[John Dinneen]

Yeah that's the unit I have.

 

[Spoon]

Yeah that's the unit I have.

So how did your original fan work?

 

[John Dinneen]

The client said that the fan unit came on when the lights for each room came on then off when the lights were off. But it was faulty when I went to swap it over

 

[Spoon]

The client said that the fan unit came on when the lights for each room came on then off when the lights were off. But it was faulty when I went to swap it over

Then the person who wired up the original fan wired the switches into the fan circuit.

Have you checked out the 5 core cable to see what its wired to?

 

[Octopus]

The client said that the fan unit came on when the lights for each room came on then off when the lights were off. But it was faulty when I went to swap it over

So you are a spark then?

I read the OP assuming you were a DIYer ...

 

[Spoon]

I read the OP assuming you were a DIYer ...

So did I.
I'm now concerned about an electrician who can't wire a switch into a circuit.

 

[John Dinneen]

Lol I am a Diyer but I have basic knowledge. Can I just put 3 switch lines into the different speeds and when all the lights are off the fan should stop?

 

[Spoon]

Lol I am a Diyer but I have basic knowledge.

You said "the client". Which makes out you are getting payed for this, which raises the question of... Are you insured to do this work?

 

[Spoon]

Have you found out what the 5 core cable is wired to?

 

[John Dinneen]

I am insured yes I won't know till I'm there this evening

 

[westward10]

The different speeds may mean the fan runs permanent on low speed and activation of the lighting in one of the rooms boosts it to a higher speed. You could then have a lower run over until it drops back to the low speed.

 

[John Dinneen]

Ok so put the perminant live into the low speed and the other lives into the higher speeds for boost.

 

[westward10]

I am only assuming this is how it is connected. You need to find out exactly how the switching is connected, trial and error is not the best way forward.

 

[John Dinneen]

Ok mate cheers for the advise