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Motion Sensor to Control both Bathroom Light and Fan? Answered

My bathroom currently has two single pole switches mounted in two separate wall boxes side by side with a single double-wide switch cover.  I want to convert these to motion sensor switches with separate vacancy delays for the light and fan so that I can let the exhaust fan run for about 5 minutes after vacancy while the light is set for maybe 30 seconds.

Are there commercial switches that will accommodate these two functions in a single switch, or will i need to use a separate switch for the light and one for the fan?  Are there single double-wide wall plate covers that will fit side by side switch placement?




1 year ago

You can get inline timers for these fans.
But they require a live wire to work.
Basically they start to run once the light is turned off, so the fan starts with the light but then stays on until the timer is run out.
With them you only need to worry about the motion sensor and adding a wire for the timer function.
The other option would be to use the empty space of one switch to mount what you need there and place the timer module there.
And if the wiring is to standards you should have the required live wire for the timer already there.
Means here the motion sensor activates the light and fan/timer together.
Once the light goes off by the motion sensor the timer keeps running until done and then the fan goes off.


1 year ago

IF your skill set includes soldering and electronics knowledge, there may be an ible that has already tackled this smelly problem before..


1 year ago

I suspect you'll need two separate switches. Any switch that could handle two circuits would almost assuredly be designed for going in one wall box, probably only a double gang box as well. You could probably replace the two single boxes with one double retrofit box but that will depend on your specific wall.
I'm not sure what your question is about the wall plate since the type you ask about is the type you said you already have in the first paragraph.