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Ask The Trades › DIY Forum › Electrical Questions › new kitchen hood

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new kitchen hood (Read 5410 times)

Jon777

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new kitchen hood
Nov 2^nd, 2012, 8:55pm

Hi,
I am fitting a new extractor hood into a kitchen which has a 3 wire cable like you would wire a plug too.
It is going to replace an older style fan which is currently fitted and has a pull string to turn it on and off. (it looks more like the sort of extractor you would get in a bathroom- more like a grill fitted in the wall).

The mains wire is available once the old unit is removed and it is fused so I believe it is correctly wired up. The old fan is not earthed though?

Can I just connect the new hood usind a junction box and do I need to earth it? (there is an earth wire on the new hood?

Thanks for any advice

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Lectrician Administrator Trade Member Author Offline Ask The Trades Posts: 8815 Total Thanks: 109 For This Post: 0 Braunton, North Devon United Kingdom Gender: Trade: Electrician	Re: new kitchen hood Reply #1 - Nov 3^rd, 2012, 7:21am The cooker hood must have it's earth connected to the earth in the supply cable. Where is the fuse? You mention pullcord - Is this part of the fan?
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Jon777 GDPR opt-out Total Thanks: 109 For This Post: 0	Re: new kitchen hood Reply #2 - Nov 4^th, 2012, 8:46am Pics above. The old unit that is coming out will leave the mains cable. Do I just connect the new hood cable with the existing junction box? Should it have the earth connected as the old unit is not? Thanks The third pic shows the fuse which is marked "fan"
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The_Trician Trade Member Offline Posts: 7721 Total Thanks: 8 For This Post: 0 Gender: Trade: Electrician	Re: new kitchen hood Reply #3 - Nov 4^th, 2012, 12:23pm Looking at the cable on the new hood - YES - you need to connect the old and new earths together. You'll need some kind of connection box to join everything up. I assume you will be venting the air out of the same hole in the wall? TT
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Jon777 GDPR opt-out Total Thanks: 8 For This Post: 0	Re: new kitchen hood Reply #4 - Nov 4^th, 2012, 6:08pm Yes the vent is already there. I was just unsure on earthing it as the old one had'nt been. I was going to use the junction box already connected on the old unit.
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CWatters Super Member Offline "Daddy fick it" says James Posts: 5150 Total Thanks: 58 For This Post: 0 Gender:	Re: new kitchen hood Reply #5 - Nov 6^th, 2012, 7:17am The need for an earth (or not) is allways determined by the new equipment not the old. It's possible the old unit was designed not to be earthed but the new one appears to need an earth from the photo.
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MichelCleark1 GDPR opt-out Total Thanks: 58 For This Post: 0	Re: new kitchen hood Reply #6 - Nov 7^th, 2012, 6:37am And it is good to earth wires to save from a short circuit in a equipment. Edited: And an even better idea to not register an account simply to place spammy adverts. Thanks anyway.
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Jon777 GDPR opt-out Total Thanks: 58 For This Post: 0	Re: new kitchen hood Reply #7 - Nov 7^th, 2012, 11:11pm Thank you all
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