Turn One Circuit On And A Different Circuit Blown - Electrical - DIY Chatroom Home Improvement Forum
Advertisement


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 12-27-2014, 09:10 AM   #1
Newbie
 
Join Date: Dec 2014
Posts: 3
Rewards Points: 6
Default

turn one circuit on and a different circuit blown


I have a question for anybody who knows electric. My house was built in 2013 with a 1st and 2nd story and a unfinished basement. This year we are working on our basement. The electriction wiring our basement and has it passed. Forward a few months and when we turn the basement bedroom ceiling light on, the 1st floor living room circuit blown a fuse. They are on two different circuit. The 1st floor living room is on a AFCI. Also, both circuit are side to side in the fuse box if that make any since. What gives? Any helpful advice would be appreciated!
medic39 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 12-27-2014, 10:19 AM   #2
UAW SKILLED TRADES
 
Stubbie's Avatar
 
Join Date: Jan 2007
Location: Kansas
Posts: 5,341
Rewards Points: 2,652
Default


Quote:
Originally Posted by medic39 View Post
I have a question for anybody who knows electric. My house was built in 2013 with a 1st and 2nd story and a unfinished basement. This year we are working on our basement. The electriction wiring our basement and has it passed. Forward a few months and when we turn the basement bedroom ceiling light on, the 1st floor living room circuit blown a fuse. They are on two different circuit. The 1st floor living room is on a AFCI. Also, both circuit are side to side in the fuse box if that make any since. What gives? Any helpful advice would be appreciated!
Probably the best thing is to call that electrician back to trouble shoot the problem. My 1st guess is he is sharing the neutrals of both circuits at some point. There are a few things you could try but will involve removing the cover from your panel and having knowledge on using test equipment if needed.
If you have been driving nails or if electrician stapled the basement light wiring to the wiring going to the living room at some point he could have a staple penetrating both cables or you may have driven a nail thru them contacting both neutrals.
__________________
" One nice thing about the NEC articles ... you have lots of choices"

Stubbie

Last edited by Stubbie; 12-27-2014 at 10:30 AM.
Stubbie is offline   Reply With Quote
The Following 3 Users Say Thank You to Stubbie For This Useful Post:
clw1963 (12-27-2014), medic39 (12-27-2014), PaliBob (12-28-2014)
Sponsored Links
Advertisement
 
Old 12-27-2014, 11:27 AM   #3
Member
 
Join Date: Sep 2012
Posts: 2,512
Rewards Points: 1,832
Default


Quote:
Originally Posted by medic39 View Post
I have a question for anybody who knows electric. My house was built in 2013 with a 1st and 2nd story and a unfinished basement. This year we are working on our basement. The electriction wiring our basement and has it passed. Forward a few months and when we turn the basement bedroom ceiling light on, the 1st floor living room circuit blown a fuse. They are on two different circuit. The 1st floor living room is on a AFCI. Also, both circuit are side to side in the fuse box if that make any since. What gives? Any helpful advice would be appreciated!
You say you have fuses yet bring up AFCI breakers?


If by fuses you mean circuit breakers it sounds like either a crossed circuit or a defective AFCI. Id call the electrician back and explain the issue.
Jump-start is offline   Reply With Quote
The Following User Says Thank You to Jump-start For This Useful Post:
medic39 (12-27-2014)
Sponsored Links
Advertisement
 
Old 12-27-2014, 02:35 PM   #4
Newbie
 
Join Date: Dec 2014
Posts: 3
Rewards Points: 6
Default


Thank you so much. For what I read, I'm thinking it might be a defective AFCI. Although a staple or a screw puncture both lines will do it, all of the living room goes on top from the breaker box and all of the basement bedroom circuit goes from the bottom from the breaker box. Either way, I'm going to call the electrician. Thanks!
medic39 is offline   Reply With Quote
Old 12-27-2014, 03:21 PM   #5
Member
 
Join Date: Sep 2012
Posts: 2,512
Rewards Points: 1,832
Default


Quote:
Originally Posted by medic39 View Post
Thank you so much. For what I read, I'm thinking it might be a defective AFCI. Although a staple or a screw puncture both lines will do it, all of the living room goes on top from the breaker box and all of the basement bedroom circuit goes from the bottom from the breaker box. Either way, I'm going to call the electrician. Thanks!
AFCIs are tricky beasts. There is a lot that makes them unhappy, and of course you do have different generations some of which are notorious for nuisance tripping.

Basically when the electrician is over I would recommend asking him to "megger" both circuits. A mega ohm meter test would determine if any circuits are crossed, shorted or have a standing fault on them. Once completed such a test can greatly narrow down any issues determining if the issue is a wiring error, plugged in appliance or the AFCI itself.
Jump-start is offline   Reply With Quote
Old 12-27-2014, 03:34 PM   #6
Newbie
 
Join Date: Dec 2014
Posts: 3
Rewards Points: 6
Default


Thanks!
medic39 is offline   Reply With Quote
Old 12-27-2014, 04:38 PM   #7
Member
 
Join Date: Sep 2012
Posts: 2,512
Rewards Points: 1,832
Default


Welcome
Jump-start is offline   Reply With Quote
Old 12-27-2014, 10:25 PM   #8
Idiot Emeritus
 
Join Date: Mar 2008
Location: Fernley, Nevada (near Reno)
Posts: 1,910
Rewards Points: 80
Default


It could be something as simple as a ground wire touching a neutral terminal screw somewhere.

With no load, this isn't a problem, but when a load is applied, the AFCI will see it as current leaking to ground and it'll trip.

As noted, a megger will pick this up right away.
micromind is offline   Reply With Quote
The Following User Says Thank You to micromind For This Useful Post:
Jump-start (12-27-2014)
Old 12-28-2014, 12:00 PM   #9
Member
 
Join Date: Aug 2009
Posts: 2,141
Rewards Points: 3,396
Default


Quote:
Originally Posted by medic39 View Post
The electriction wiring our basement and has it passed.
How is he/she going to come back?

Isn't he/she dead?
ritelec is offline   Reply With Quote
Old 12-28-2014, 09:41 PM   #10
Member
 
Msradell's Avatar
 
Join Date: Sep 2011
Location: Louisville Kentucky
Posts: 2,923
Rewards Points: 1,140
Default


From your OP it sounds like the living room circuit works fine except for when you turn on the basement bedroom light, is that correct? Does the actual breaker trip or does it get a AFCI fault? Other than tripping the living room circuit when you turn the basement bedroom light on does everything else downstairs were correctly? The more information you can provide the more likely users here are going to be able to help you solve your problem.
__________________
Written using Dragon Naturally Speaking
Msradell is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply


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
Dead circuit, couldn't find problem so tied into second circuit zappy12 Electrical 25 12-13-2012 09:38 PM
lights won't turn on, circuit breaker is fine. danio Electrical 3 09-21-2012 05:37 PM
Did My GFCI Circuit Breaker Fail? Jazan Electrical 8 08-04-2012 03:44 PM
Circuit blows when i turn off switch joeg679 Electrical 37 04-25-2011 07:58 PM
Wiring Size Calculations for New Service CorinthWest Electrical 7 12-07-2010 11:36 AM




Top of Page | View New Posts