Bad neutral on extraction fan?

[Ben Sanderson]

Hi all I've recently moved house and the extractor fan was not working, I've replaced the fan with a 240v extractor fan and wired up to my spotlights that are also 240v but for some reason the fan doesn't work. I've ran a new cable, tried 2 different extractor fans and definitely have 240v on the supply to the fan but it won't work and the lights do. Anything else I can try? Thanks

 

[Pete999]

Hi all I've recently moved house and the extractor fan was not working, I've replaced the fan with a 240v extractor fan and wired up to my spotlights that are also 240v but for some reason the fan doesn't work. I've ran a new cable, tried 2 different extractor fans and definitely have 240v on the supply to the fan but it won't work and the lights do. Anything else I can try? Thanks

Is there a fan isolator fitted anywhere?

 

[Strima]

Is there a fan isolator fitted anywhere?

Or a fuse somewhere.

 

[Ben Sanderson]

Yeah there will be once working but I'm just trying to get it to work first

 

[Spoon]

Welcome to the forum.
It's strange that the fan is not working, especially that you are getting 240V at the fan.
What fan do you have?

 

[Ben Sanderson]

Thanks and it's an xpelair 100mm extractor fan from screwfix, vx100t is the model number

 

[Andy78]

The "t" at the end of the product code is the clue. How did you get on with the installation instructions ?

 

[ruston]

Does it have a switched live and permanent live? The one with the timer will. They need to be in the correct switching arrangements.

 

[Pete999]

Welcome to the forum.
It's strange that the fan is not working, especially that you are getting 240V at the fan.
What fan do you have?

How did you test the voltage at the fan? not a voltstick was it?

 

[Ben Sanderson]

The one fan just had permanent live and neutral, the other fan I tried also had a switched live but I didn't use that terminal as I only intend for it to rely on the pull cord switch. Thanks

 

[Ben Sanderson]

How did you test the voltage at the fan? not a voltstick was it?

No a fluke multimeter

 

[Ben Sanderson]

The "t" at the end of the product code is the clue. How did you get on with the installation instructions ?

Hi the instructions weren't the best to be fair but I just used the permanent live as I only want it to on when the lights are on. I believe that it should work like this?

 

[ruston]

Have you switched to the permanent live on the circuit board? This is meant to be permanent live and activated during switching to run the timer and fan only after switching off.

 

[Baker1988]

Have you tried to link the switched live and perm live together.

 

[Andy78]

Hi the instructions weren't the best to be fair but I just used the permanent live as I only want it to on when the lights are on. I believe that it should work like this?

Found the connection instructions online and they are incredibly clear.
Xpelair VX100 User Manual (Page 3 of 12) - https://www.manualslib.com/manual/1462959/Xpelair-Vx100.html?page=3#manual

If you are struggling with this I would recommend getting a competent electrician in. It could avoid damage to the new fan or worse, to yourself. If this work is in the zones of a bathroom it should be notified to building control anyway.

 

[westward10]

You ideally need a non timer fan but as in #14 this is a method to make it function, not a manufacturers prescribed method but nonetheless. As in #15 these works are notifiable to building control.

 

[Ben Sanderson]

Hi all thanks for the replies and I tried a manrose extractor fan and it worked first time, guess it was 3rd time lucky.

 

[Ben Sanderson]

Hi all thanks for the replies and I tried a manrose extractor fan and it worked first time, guess it was 3rd time lucky.

Found the connection instructions online and they are incredibly clear.
Xpelair VX100 User Manual (Page 3 of 12) - https://www.manualslib.com/manual/1462959/Xpelair-Vx100.html?page=3#manual

If you are struggling with this I would recommend getting a competent electrician in. It could avoid damage to the new fan or worse, to yourself. If this work is in the zones of a bathroom it should be notified to building control anyway.

Hi Andy I've just gone and bought a fan without a timer, worked first time. Thanks

 

[ipf]

What happened to the initial fan supply?
New supply picked up from spotlights?
Stick a pin in it...…..3rd time lucky.....Well Done.

By the way....what's a bad neutral got to do with it?

 

[Ben Sanderson]

What happened to the initial fan supply?
New supply picked up from spotlights?
Stick a pin in it...…..3rd time lucky.....Well Done.

Thanks and the original supply was also from the spotlights but originally went through a transformer.