Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Electrical

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 04-20-2011, 10:00 AM   #1
Newbie
 
Join Date: Apr 2011
Posts: 7
Share |
Default

Need help wiring bathroom light/exhaust fan unit on one switch.


I'm replacing a non-functioning exhaust fan and light with a new unit and I wasn't smart enough to make note of how it was wired before removing the old unit. Unfortunately, the instructions that came with the unit are for a dual switch (?) and I'm having a helluva time trying to get both the light and fan working simultaneously.

Here's what I have in my attic:
black/white/ground wiring running from the fuse box
black/white/ground wiring running to other parts of the house (or returning to the fuse box?)
black/white(marked with black) wiring from the timer switch
white/black from the fan
white/blue from the light

I've been looking all over the internet for this setup, but my search has been fruitless. Has anybody tackled this before? How should I be wiring for one switch?


Last edited by nailliK; 04-20-2011 at 10:21 AM. Reason: added better description
nailliK is offline   Reply With Quote
Old 04-20-2011, 10:36 AM   #2
Member
 
Join Date: Apr 2011
Location: Pittsburgh
Posts: 84
Default

Need help wiring bathroom light/exhaust fan unit on one switch.


In the light switch box what wires do you have and how did the old fan run.

jmans8666 is offline   Reply With Quote
Old 04-20-2011, 10:39 AM   #3
Newbie
 
Join Date: Apr 2011
Posts: 7
Default

Need help wiring bathroom light/exhaust fan unit on one switch.


The light switch box contains a black wire and a white wire marked with black. As I stated earlier, I didn't have the foresight to note how everything was all wired prior to disconnecting and removing the old fixture, which is what brings me to this wonderful forum.
nailliK is offline   Reply With Quote
Old 04-20-2011, 10:46 AM   #4
Member
 
Join Date: Apr 2011
Location: Pittsburgh
Posts: 84
Default

Need help wiring bathroom light/exhaust fan unit on one switch.


I'm not sure but I think you might need to run new wire from the switch box to the fan. The fan I installed required 3 wire and I had a duel switch it request e hots. One from the power source then one to the fan light and another hot to the fan itself. So you might need to run new wire up to the fan
jmans8666 is offline   Reply With Quote
Old 04-20-2011, 10:47 AM   #5
Member
 
Join Date: Apr 2011
Location: Pittsburgh
Posts: 84
Default

Need help wiring bathroom light/exhaust fan unit on one switch.


3 hots
jmans8666 is offline   Reply With Quote
Old 04-20-2011, 10:49 AM   #6
Newbie
 
Join Date: Apr 2011
Posts: 7
Default

Need help wiring bathroom light/exhaust fan unit on one switch.


I don't believe that's necessary, as the old unit was wired and worked (before the fan went out) with the current set of available wires.
nailliK is offline   Reply With Quote
Old 04-20-2011, 10:50 AM   #7
Member
 
Join Date: Apr 2011
Location: Pittsburgh
Posts: 84
Default

Need help wiring bathroom light/exhaust fan unit on one switch.


Did the old fan have a light? And if it did when you turned on the switch the fan stayed on when the light was on?
jmans8666 is offline   Reply With Quote
Old 04-20-2011, 10:52 AM   #8
Newbie
 
Join Date: Apr 2011
Posts: 7
Default

Need help wiring bathroom light/exhaust fan unit on one switch.


Yep, the old unit and the new unit are a light/fan combination. There is only one switch that turns on both the light and the fan.
nailliK is offline   Reply With Quote
Old 04-20-2011, 10:54 AM   #9
Member
 
Join Date: Apr 2011
Location: Pittsburgh
Posts: 84
Default

Need help wiring bathroom light/exhaust fan unit on one switch.


If the new fan needs 2 switches you will need new wire with more hot wires I believe. One hot from the power one hot that goes to the fan light and one that goes to the fan.
jmans8666 is offline   Reply With Quote
Old 04-20-2011, 10:58 AM   #10
Newbie
 
Join Date: Apr 2011
Posts: 7
Default

Need help wiring bathroom light/exhaust fan unit on one switch.


The new fan/light unit has the same two white wires and two black wires as the old unit, which was powered by one switch. I understand that it would be easier to wire the unit to two switches, but that would then require me to run new wires through my walls and into my attic. I'd rather stick with what I've got and figure out how it was wired previously to make it all work on one switch.

Below is a reply I just received from another forum. I might try this out when I get home from work:

These 2 blacks, along with the black that is paired with white that is painted black should go together.
The black and blue fan and light wires to the white that is painted black.
All remaining whites together.
All grounds together.
This puts both fan and light on 1 switch.
nailliK is offline   Reply With Quote
Old 04-20-2011, 11:02 AM   #11
Member
 
Join Date: Apr 2011
Location: Pittsburgh
Posts: 84
Default

Need help wiring bathroom light/exhaust fan unit on one switch.


Yeah that would work I think. But goodluck
jmans8666 is offline   Reply With Quote
Old 04-20-2011, 01:38 PM   #12
Licensed Pro
 
Join Date: Mar 2007
Location: SC
Posts: 1,533
Default

Need help wiring bathroom light/exhaust fan unit on one switch.


Quote:
Originally Posted by nailliK View Post
I'm replacing a non-functioning exhaust fan and light with a new unit and I wasn't smart enough to make note of how it was wired before removing the old unit. Unfortunately, the instructions that came with the unit are for a dual switch (?) and I'm having a helluva time trying to get both the light and fan working simultaneously.

Here's what I have in my attic:
black/white/ground wiring running from the fuse box
black/white/ground wiring running to other parts of the house (or returning to the fuse box?)
black/white(marked with black) wiring from the timer switch
white/black from the fan
white/blue from the light

I've been looking all over the internet for this setup, but my search has been fruitless. Has anybody tackled this before? How should I be wiring for one switch?
The blacks from the first two go together along with the white marked with black.
The black from the timer switch (cable shared with remarked white) is connected to the black and blue from the fan/light.
All the remaining whites are connected together along with the white from the fan/light. All grounds connected together.
__________________
"Life is hard. Life is harder when you're stupid." John Wayne
HouseHelper is offline   Reply With Quote
Old 04-20-2011, 02:32 PM   #13
Newbie
 
Join Date: Apr 2011
Posts: 7
Default

Need help wiring bathroom light/exhaust fan unit on one switch.


Thank you very much, HouseHelper. I shall give this a try and report the outcome when I get home from work.
nailliK is offline   Reply With Quote
Old 04-20-2011, 07:17 PM   #14
Newbie
 
Join Date: Apr 2011
Posts: 7
Default

Need help wiring bathroom light/exhaust fan unit on one switch.


It worked! I greatly appreciate your help.

nailliK is offline   Reply With Quote
Reply

Tags
bathroom, exhaust, light, one switch, wiring


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Double switch wiring rockclimber Electrical 18 03-18-2012 10:13 PM
Unusual three way switch wiring help r1racer Electrical 9 11-11-2010 08:49 PM
fan/light switch buzzing mjlocat Electrical 4 05-23-2010 02:44 PM
3-way light with a twist Jeepsail Electrical 14 05-18-2010 01:24 AM
Hunter Fan Dual Switch Wiring Configuration Help schierle Electrical 2 03-29-2009 08:00 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.