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Wiring problem "I am a do-it-yourselfer without a lot of electrical experience. I have installed a new fan combo above my bathroom, but I'm not sure how to complete the wiring. Here's a link to the instructions and the wiring diagrams for the fan that I purchased. http://www.broan.com/common/productDigitalAssethandler.ashx?id=379d6b45-26d0-49db-892f-46d1974b8ca3 The bathroom has a light above the vanity controlled by one switch and one outlet next to the bathroom sink. I removed the light fixture above the shower area that was controlled by a second switch. Then I removed the box for the light and have the wires loose in the attic. There are three wires, each of them have a black, white, and ground in them. One comes from the circuit breaker box, one comes from the light switch. There's one more and I'm not sure where it goes. I do not know exactly how to wire in the fan. I bought a 3 way switch, but I do not have the black/white/red/ground wire going from the attic down to the switch. I don't want to wire everything together and ruin the fan. I would appreciate any advice you can give. Thank you!"

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  • Broan-NuTone Master
  • 5,089 Answers

11-1-12
Thanks for link to manual.
Solution might take more response for full clarity, and you seem a good electrician.
I have numbered two questions that may be unimportant.
Add a comment, response after 5 pm CST

Here is illustration showing Black Hot and White Neutral in attic junction box, as you described. With black-red-blue wires connected as shown in Broan manual. And each device connected to White neutral wire in junction box.
http://waterheatertimer.org/images/Triple-fan-light-night-light.jpg

You have access to attic, and can drop another cable down wall into switch box. This will give necessary total 4 wires between switch and Broan
http://waterheatertimer.org/OWB1.html

Key start point: Junction box in attic has the Black Hot wire and White neutral coming from circuit breaker box.
This cable powers the junction box.

There are 3 cables in junction box, each cable with black and white.
Cable from breaker box with Hot and Neutral. Cable going to light switch.
Another cable jumps power to next box in the circuit, and will be reconnected when finished, black-to-black white-to-white

Old light switch in wall was single pole.
1) How many cables are inside switch box? Just one cable from attic with black and white wire?
2) 3-way switch is the wrong switch, unless you mean 3-pole triple switch with 3 screw terminals on one side of device?

Here is another link that shows wiring choices if you decide to use 3 separate switches (or timers or occupancy sensor to turn on night light) instead of triple switch: Install triple box.
http://waterheatertimer.org/How-to-wire-switches.html#4-f

Posted on Nov 01, 2012

  • Gene Haynes May 30, 2014

    Did you add the link to electrician service... or did fixya add that promotion, implying that you are recommending the service? Fixya has become a bowl of product promotion guised as questions and answers among people

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aborcass
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SOURCE: Need Wiring instructions

no problem just wire the black to black and white to white. connect the ground and cap off the blue wire, its used only for ooptional light assy

Posted on Apr 03, 2008

muttandjeff
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SOURCE: wiring connection ceiling fan

copper to green , white to white , seperate the black and the black with th white tracer you wired together connect the black to the black and the black with white tracer to the red in ceiling , without looking this is my best advise ,good lk

Posted on Nov 27, 2008

  • 1114 Answers

SOURCE: Combo lite/vent fan/nite light affected by heat?

There's probably a thermal switch in the fixture which turns the fan on when the lights are on for a period of time and heat accumulates in the fixture. It sound like the heat from the attic is setting off the thermal switch. When the attic heat drops, the fixture works correctly.

This is a catch 22 situation, because if the upper housing in the attic is insulated from the attic heat, the insulation will prevent heat dissipation from the heat generated by the fixture's light bulbs. So, for safety reasons, the upper housing should not be insulated.
I'll need to work on this to come up with a fix.

Posted on Jul 20, 2009

dnewcombe1
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SOURCE: Im needing to stall a new switch and timer on a 2

Your fan is a 220 volt, your power supplyu is a 110 volt. Not going to work.

Posted on Sep 07, 2009

jcameo7270
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SOURCE: I am attempting to install my Hunter 21095

Black is for the fan motor which you connect to black(hot), black/white is for the light which you connect to the switched lead in the ceiling, the white lead from the fan goes to the neutral lead in ceiling, and tjhe green wire is earth ground and goes to the box screw in the ceiling

Posted on Jan 20, 2011

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