How To Wire Fan Separately From Bathroom Light? - Electrical - DIY Chatroom Home Improvement Forum

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Old 03-26-2010, 06:18 PM   #1
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how to wire fan separately from bathroom light?

hi guys,

Im a 1st year apprentice sparks so pretty inexperienced! i have a job on during the week to wire a bathroom extractor fan in for my friend. He wants it to come on separately from the bathroom light.

Theres a 2 gang switch outside the bathroom, one for landing lights other for bathroom. So im thinking of replacing this with a 3 gang switch for the fan.

Im gonna take permanent feed from one of the two other switches ie(bathroom or landing) to the fan switch 'common' to power it, then also take a permanent feed for the fan from the 'common' side of this new switch as its a timer fan.

Then switch feed from L1 on new switch to fan. And finally neutral from bathroom light fitting to fan. I know that these 3 cables going to fan have to be isolated at another switch before going to fan!

Am I on the right track. Thanks in advance.
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Old 03-26-2010, 06:38 PM   #2
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Take one of the single switches out & install a dual switch
Easiest way is probably a 14-3 wire if its a 15a circuit
Is there an existing light or fan right now ?
Where are you located ?

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Old 03-27-2010, 06:14 AM   #3
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Comments made by the OP lead me to believe his location may be UK, Australia, or the like???

Just because you can, doesn't always mean you should
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Old 03-27-2010, 07:23 AM   #4
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I just got one of these for my new bathroom...kind of expensive (about $52 USD) but cool. Double switch, and the fan switch has a built-in countdown timer so it can run for a while after your shower and shut off automatically.

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Old 03-27-2010, 11:43 AM   #5
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This is what Dave suggested. I think.
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