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    MisterM's Avatar
    MisterM Posts: 2, Reputation: 1
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    #1

    Jan 10, 2014, 09:40 PM
    3way switch wiring diagram
    Am attempting to wire a bath room fan with a light and night light to a 3 swtch control . If I use 12-3romex I still need an extra wire from fan to switch ? Or light to switch ? Unit is a nutone model qtn80l switch is leviton no. 1755 help! Also it appears I need to use the white wire from switch to blue wire on light or black wire to fan? Also power source is 12-2 romex to the fixture.
    hkstroud's Avatar
    hkstroud Posts: 11,929, Reputation: 899
    Home Improvement & Construction Expert
     
    #2

    Jan 11, 2014, 01:23 AM
    Assume you mean you want install switches to control the fan, the light and the night light individually, not that you are installing a set of 3-way switches.

    Use 12-4 cable between the fixture and the switches. Color both ends of the white wire of that cable with black marker to designate it a hot. Use the white redesiginated hot to take power to the switch. Use red, black and blue to return power from switches to fan/light/nite light.

    Home Depot sells a cable they call 12-2-2, could also use that.

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