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Bathroom fan signal live wire on a dimmer - okay or not?
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<blockquote data-quote="Alla Musica" data-source="post: 553225" data-attributes="member: 37613"><p>Hi all,</p><p></p><p>I hope you're all enjoying your festive winter.</p><p></p><p>I'm just imagining ideas myself - but let's assume the following scenario:</p><p></p><p>As per the British norm, the bathroom lights and fan are on the same switch (on the wall just outside the bathroom). A permanent live <em>power</em>s the fan; a switched live (controlled directly by the light switch) <em>powers</em> the lights and <em>feeds the voltage signal into</em> the fan.</p><p></p><p>That means, the lights and fan will usually come on simultaneously on being switched on. After the lights are switched off, the fan will overrun for a set amount of time and turn off as well.</p><p></p><p>At this stage it is impossible to run another switched live from the backbox to the ceiling to separate the fan from the lights without breaking the walls.</p><p></p><p>Now the question is - if the lights are dimmable, could I put a dimmer on the switched live? I think, as for the switched live into the fan, all it does is sending the signal into the fan and telling it to stay on - does it matter how many volts the fan needs to receive in order to be identified as a signal? More importantly - it is safe or not?</p><p></p><p>Much appreciated for taking your time!</p><p></p><p>Very best,</p><p>Chris</p></blockquote><p></p>
[QUOTE="Alla Musica, post: 553225, member: 37613"] Hi all, I hope you're all enjoying your festive winter. I'm just imagining ideas myself - but let's assume the following scenario: As per the British norm, the bathroom lights and fan are on the same switch (on the wall just outside the bathroom). A permanent live [I]power[/I]s the fan; a switched live (controlled directly by the light switch) [I]powers[/I] the lights and [I]feeds the voltage signal into[/I] the fan. That means, the lights and fan will usually come on simultaneously on being switched on. After the lights are switched off, the fan will overrun for a set amount of time and turn off as well. At this stage it is impossible to run another switched live from the backbox to the ceiling to separate the fan from the lights without breaking the walls. Now the question is - if the lights are dimmable, could I put a dimmer on the switched live? I think, as for the switched live into the fan, all it does is sending the signal into the fan and telling it to stay on - does it matter how many volts the fan needs to receive in order to be identified as a signal? More importantly - it is safe or not? Much appreciated for taking your time! Very best, Chris [/QUOTE]
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Bathroom fan signal live wire on a dimmer - okay or not?
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