Attic Fan - Electrical - DIY Chatroom Home Improvement Forum

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


Thread Tools Display Modes
Old 07-31-2011, 04:18 PM   #1
Join Date: Jul 2011
Posts: 1
Rewards Points: 10

Attic Fan

Greetings, I hope this forum can be of some use to me. We shall see.

House was built in the 1990's.
We are the third owner's. Purchased home in Oct. '10
Our bedroom has one switch which controls a room fan.
Fan operates just fine. We can use the pull strings for fan or fan light with no problem.
Today, with the fan turned on my wife heard a very loud humming sound. It seemed like it was coming from the opposite wall of the switch. Sure enough I determined that the attic fan is being controlled by the room fan as well.
The biggest concern is that we have never heard the attic fan kick on when we switch the room fan to the on position.

A) Is this wiring setup allowed?
B) What would explain the attic fan turning on now? (Current temp. at time of discovering this issue is 100 degrees. There have been hotter days and we have not heard the attic fan run.)
C) If this is not legitimate wiring, could the room fan switch be changed to a dual switch as long as the amps are not exceeded for the line? (I have not gone into the attic yet to find the fan amp rating, nor have I determined what is on this entire run.)


Miterez is offline   Reply With Quote
Old 07-31-2011, 04:23 PM   #2
Master Electrician
Join Date: Mar 2010
Location: Indiana
Posts: 3,412
Rewards Points: 3,080

Attic Fan

My guess would be that the attic fan is controlled by a thermostat located near the fan in the attic.


brric is offline   Reply With Quote
Old 08-01-2011, 09:06 AM   #3
Join Date: Aug 2011
Posts: 4
Rewards Points: 10

Attic Fan

It possibly could be caused by someone who installed a ceiling fan in your bedroom used the attic fan switch as a way to power the ceiling fan in the bedroom and wired it wrong at the switch of the attic fan.
ernie_the_dog is offline   Reply With Quote

Thread Tools
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
Attic project - Would like opinions whataboutj Insulation 6 06-29-2011 04:07 PM
Raccoons in the attic electricpete Pest Control 17 05-12-2011 05:02 AM
Ventilating attic with two roofs senorbungle Building & Construction 2 01-09-2011 05:17 PM
Attic fan options P550 Roofing/Siding 1 08-22-2010 01:47 PM
Attic fan options. P550 Electrical 6 08-22-2010 01:30 PM

Top of Page | View New Posts