DIY Home Improvement, Remodeling & Repair Forum > DIY Home Improvement > Electrical and Wiring > ceiling light wiring affecting light in another room

Thread Tools Search this Thread Display Modes
Old 05-23-2008, 01:53 PM  
Junior Member
Join Date: May 2008
Posts: 1
Default ceiling light wiring affecting light in another room

I have just replaced the ceiling light after a replastering job. It worked well until I have been told that when it is switched on the ceiling light in the next bedroom goes off. Help!!!!!

johnm is offline  
Reply With Quote
Old 05-23-2008, 06:22 PM  
Supporting Member
Join Date: Nov 2007
Location: Grand Blanc, MI
Posts: 2,383
Liked 156 Times on 132 Posts
Likes Given: 71


You've obviously done more than just change out the fixture. How invasive was the plaster job? The more detail on this one the quicker we can get you straightened out and have a safe home.

kok328 is offline  
Reply With Quote
Old 05-23-2008, 07:05 PM  
Junior Member
Join Date: May 2008
Posts: 17

Is it possible you've inadverdently created the effect of a pair of three-way switches, but with the lights on two different paths instead of on the same path which is what you'd do if you were *trying* to make two lights controlled by a pair of three-way switches.

My idea only makes sense if it's not something more dangerous - like a ground fault.

Like KOK328 said, we need more details - is any breaker tripping, or can you walk back and forth repeatedly turning one light on (but causing the other to turn off). Any noises or smells would be an important (and bad) sign.
gfw is offline  
Reply With Quote
Old 05-23-2008, 07:20 PM  
Junior Member
Join Date: May 2008
Posts: 17

Following up on my own post, a person could indeed deliberately wire mutually exclusive lights using two 3-way switches, but not without trying :-)

If you only replaced the light, and you know which wire is ground, then that couldn't happen. If you also had the switches off the wall and reconnected them incorrectly, then bets are off.

How to wire a 3-way switch
gfw is offline  
Reply With Quote
Old 05-25-2008, 12:55 AM  
triple D
Senior Member
Join Date: Jan 2008
Posts: 296
Liked 1 Times on 1 Posts

Default Are there three black and white wires in light box?

If so then you have what is called a switch loop. This is where you have a power in and out of a light, thats two wires, and a wire that goes to a switch. Generally a white wire in the light box is tied to the two black powers, and goes to switch, and comes back on the black wire to be hooked to light. The other two whites are neutrals and hook together with white from light fixt. If any of this makes sense you could pull down light and have a look. Then if its greek you could tell us what you see in there then we could surely help ya out. Good luck.....

[COLOR="DarkGreen"][FONT="Franklin Gothic Medium"]See my work-Check out my album. "Git 'Er Done":D [/FONT][/COLOR]
triple D is offline  
Reply With Quote

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

Similar Threads
Thread Thread Starter DIY Home Repair Forum Replies Last Post
Ceiling fan light woes Rincon Electrical and Wiring 3 05-01-2008 04:25 PM
Best Way to Repair Notch in Textured Ceiling gpdiy77 Flooring 1 09-22-2007 09:07 AM
Add a light to a ceiling fan? turkish Electrical and Wiring 1 04-30-2007 01:13 PM
Newbie to put in ceiling fan! - wiring not grounded? operaflute Electrical and Wiring 6 03-18-2007 10:50 PM
Need Help With Insulating Ceiling Of Enclosed Porch passmaster16 Flooring 12 05-18-2006 05:22 PM

Newest Threads