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-   -   New exhaust fan install in a old bathroom? (http://www.diychatroom.com/f18/new-exhaust-fan-install-old-bathroom-6971/)

tom6024 03-08-2007 01:43 PM

New exhaust fan install in a old bathroom?
 
I am trying to install a exhaust fan in our bathroom. The room never had a fan before. I need to know how to wire the fan to an existing wall switch.
Thanks for the help.

beer_geek 03-08-2007 01:53 PM

Confusion time. If there never was a fan, how could there be a switch?

Just kidding...Anyway, I assume you want to attach it to the light switch so the fan comes one with the light. Is that correct? Pick your poison. Either run the wire down to the switch and pigtail them together or run the wire to the fixture and make the connection there.

tom6024 03-08-2007 03:25 PM

Dear Mr. Beer Geek,

I would like to change the single light switch to a double switch so as to turn them on independly.

beer_geek 03-08-2007 05:11 PM

It depends on how the light is wired. How are the wires connected to the switch and the light? How old is the house? I ask these questions in order to determine how to phrase an answer. I'm sure the pros would need more information as well.

jwhite 03-08-2007 05:31 PM

Where is the existing light? Are you trying to replace a ceiling light with a fan light combo?

Is there an attic? Above the bath room?

tom6024 03-09-2007 07:27 AM

The light switch is on the out side of the shower wall and controls the light in the shower. The light switch is a single pole ,single throw switch. I thought I could install the fan and drop a wire from the attic to the wall switch and change the switch to double pole, double throw switch. I then could operate the light and the fan independent of each other.

beer_geek 03-09-2007 08:19 AM

That's fine but it doesn't tell us how it's wired. Is the switch at the beginning or end of the run? Secondly, you want 2 single pole switches if you want them to act independently.

tom6024 03-09-2007 09:54 AM

I now understand what you are asking . I don't know the answer to that question and I don't know how to tell.

beer_geek 03-09-2007 12:09 PM

I'll ask one more question but I'm really leaning towards you having a pro come in and take care of this.

When you turn off the power and pull out the switch, what do you see?

tom6024 03-12-2007 07:28 AM

I pulled the switch out and there were two wires coming down in to the box. All the grounds were tied together, all the whites were tied together and there was a black on the top and bottom of the switch. The switch had only two screws on it.

beer_geek 03-12-2007 10:01 AM

Quote:

Originally Posted by tom6024 (Post 36662)
I pulled the switch out and there were two wires coming down in to the box. All the grounds were tied together, all the whites were tied together and there was a black on the top and bottom of the switch. The switch had only two screws on it.

That's great information. The first thing I'd do, is go out and get the Black and Decker Advanced Home Wiring Book. It has simple diagrams for you to follow.

Page 28 shows Ganged Single-pole Switches Controlling Separate Light Fixtures.

It is exactly what you are looking to do. I could write paragraphs describing the connections but the picture really makes it easier.

Follow this link: http://books.google.com/books?id=TAK...Za__s#PPA28,M1

It is the page in the book that you want. Hope this helps.

tom6024 03-12-2007 11:32 AM

Mr. Beer Geek

Thank you so much for your help, but most important for your time to help. Thanks again


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