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#46581 - 09/28/03 02:08 PM how to wire an exhaust fan and a light
Anonymous
Unregistered


How would I wire a exhaust fan and a light to one source of power with two different switches.

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#46582 - 09/28/03 02:41 PM Re: how to wire an exhaust fan and a light
Arnold Offline
Helpful Electrician

Registered: 07/09/02
Posts: 5000
Loc: United States
Bathroom, right?

It would be helpful to know what you are starting with. There are lots of ways to do this, but depending on what you have now, not all are equally feasible. We also need to know whether the light and fan are separate units, or whether this is a combo unit. Finally, it would be good to know whether this is a 15-amp or 20-amp circuit.

The two main options are: (1) Run power to the switch box and then run 12/3 from the switch box to the fixture. (2) Run power to the fixture and then run 12/3 from the fixture to the switch box.

Please supply more information.
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_____________________________________________ Start every day off with a smile and get it over with

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#46583 - 09/28/03 02:50 PM Re: how to wire an exhaust fan and a light
Anonymous
Unregistered


Yes it's a bathroom and it's all new wiring. I ran 12/3 from the panel to the switch box and the 12/3 from the light to the switch box and then 12/3 from the fan to the switch box. what I am looking to do is hook up two different switches to one source of power.


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#46584 - 09/28/03 03:09 PM Re: how to wire an exhaust fan and a light
Arnold Offline
Helpful Electrician

Registered: 07/09/02
Posts: 5000
Loc: United States
By "12/3", are you referring to a cable with three insulated conductors (black, red, white) and one bare wire? Or do you mean 12/2, with two insulated conductors (black and white) and one bare wire? The latter would make a lot more sense, and I'm going to assume that you really meant 12/2.

Connect all three white wires in the switch box to each other and tuck into the back of the box.

Connect all three bare wires to each other, and to two bare or green pigtails, one to each green screw.

Connect the power cable black wire to two black pigtails, one to a brass screw on each switch.

Connect the black wire from the fan to the remaining brass screw on one switch, and the black wire from the light to the remaining brass screw on the other switch.

Is this enough?

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_____________________________________________ Start every day off with a smile and get it over with

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#46585 - 09/28/03 07:17 PM Re: how to wire an exhaust fan and a light
frenchelectrican Offline
Handyman

Registered: 09/18/03
Posts: 671
Loc: Wisconsin and Paris France ...
ok let assume that he have 12/2 wire at switch box. ok if fan and light is together as combo unit. here what i useally do :
(the wire from switch to fan is 12/3)
1) at the switch all the white wire tied with wirenut and push it back in the wall

2) bare wire [grounding wire] make 2 pigtail and tie alltogether and push the wires back in the box but leave 2 wire out for grounding {nec codes are kinda strict with this }

3) make 2 pigtail for black wires and tie the black wire toether with wirenut and push it back but leave the pigtail out.

4) get the switch ready make a loop for screws and hook the black wire at each screw usealy at top but you can do the bottom too if you want to

5) get the black wire for fan or light and hook it up
5A)get the red wire for fan or light [ mark it so know which way]

then go to fan/light combo and start termated there useing wire nuts and hook the ground to frame of fan/ light unit

hook up the white wire with wirenut then hook the black wire to light or fan { depend on which you do} then the red wire the same thing too then push the wires back in the box on the fan/light unit then plug the fan to proper plug and the same with light socket assambly to proper plug too

voila!

merci , marc

if doubt let us know we will try to help you with it .


p.s. the black wire at fan/light is useally for light and red for fan that is common pratice but be carefull with it .
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Observer,écouter et Prudence [translated : Look , Listen and work safe ]

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