AFCI Tripping - Electrical - DIY Chatroom Home Improvement Forum


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

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

Reply
 
Thread Tools Display Modes
Old 05-25-2011, 01:26 PM   #1
Newbie
 
Join Date: May 2011
Posts: 7
Rewards Points: 10
Default

AFCI tripping


Hello:

Our home was recently remodeled and our kids rooms completely rebuilt. I did all the wiring. Yesterday I replaced the normal breakers with AFCI breakers are required by code. Both breakers immediately tripped. Unplugged everything, flipped them back on and when anything is plugged in and turned on they immediately trip. Read about shared neutrals and removed one of the breakers, problem persists. Both circuits are homeruns, #12 guage. Anyway to problem solve this?

Thanks

Advertisement

StevenNW is offline   Reply With Quote
Old 05-25-2011, 01:45 PM   #2
Electromagician
 
Join Date: May 2011
Posts: 79
Rewards Points: 75
Default

AFCI tripping


make sure breaker is wired correctly and eliminate any equipment ground to grounded conductor connections. these can be in any box in the circuit, and could be a ground wire touching the grounded conductor screw of a receptacle. you can have no continuity between grounded conductor and equipment ground. you can disconnect the circuit in the panel and ohm out the problem.

Advertisement

powerfactor is offline   Reply With Quote
The Following User Says Thank You to powerfactor For This Useful Post:
WillK (06-04-2011)
Old 05-25-2011, 02:49 PM   #3
Newbie
 
Join Date: May 2011
Posts: 7
Rewards Points: 10
Default

AFCI tripping


Quote:
Originally Posted by powerfactor View Post
make sure breaker is wired correctly and eliminate any equipment ground to grounded conductor connections. these can be in any box in the circuit, and could be a ground wire touching the grounded conductor screw of a receptacle. you can have no continuity between grounded conductor and equipment ground. you can disconnect the circuit in the panel and ohm out the problem.
Thanks...by ohm out the problem do you mean check continuity between the ground and neutral at the panel? And then search around for where this continuity is occurring?
StevenNW is offline   Reply With Quote
Old 05-25-2011, 03:23 PM   #4
Member
 
Join Date: Oct 2010
Location: Central Indiana (USA)
Posts: 1,318
Rewards Points: 500
Default

AFCI tripping


Quote:
Originally Posted by StevenNW View Post
Hello:

Our home was recently remodeled and our kids rooms completely rebuilt. I did all the wiring. Yesterday I replaced the normal breakers with AFCI breakers are required by code. Both breakers immediately tripped. Unplugged everything, flipped them back on and when anything is plugged in and turned on they immediately trip. Read about shared neutrals and removed one of the breakers, problem persists. Both circuits are homeruns, #12 guage. Anyway to problem solve this?

Thanks
Please describe how you installed the AFCI
sirsparksalot is offline   Reply With Quote
Old 05-25-2011, 03:29 PM   #5
Newbie
 
Join Date: May 2011
Posts: 7
Rewards Points: 10
Default

AFCI tripping


Quote:
Originally Posted by sirsparksalot View Post
Please describe how you installed the AFCI
Pulled out the traditional breaker, screwed the black to the new AFCI breaker and the white pigtail to the neutral bus bar. Square-D QO box. Our box is 125 amps and there are up to 3 neutral wires in each screw hole on the neutral bus. Initially placed both pigtails in the same screw hole, then separated them, but they are all ultimately tied together on the bar so this didn't make any difference.

Thanks for the help.
StevenNW is offline   Reply With Quote
Old 05-25-2011, 03:53 PM   #6
Member
 
Join Date: Oct 2010
Location: Central Indiana (USA)
Posts: 1,318
Rewards Points: 500
Default

AFCI tripping


Quote:
Originally Posted by StevenNW View Post
Pulled out the traditional breaker, screwed the black to the new AFCI breaker and the white pigtail to the neutral bus bar. Square-D QO box. Our box is 125 amps and there are up to 3 neutral wires in each screw hole on the neutral bus. Initially placed both pigtails in the same screw hole, then separated them, but they are all ultimately tied together on the bar so this didn't make any difference.

Thanks for the help.
Both the black hot wire and the white neutral wire attach to the AFCI, The coiled wire attaches to the neutral bus, so...

Find the neutral that was with the original black hot wire in the panel (look where the cable enters the panel). This neutral wire should be connected to the neutral bus. REMOVE it, and connect it to the AFCI breaker. See diagram below.

sirsparksalot is offline   Reply With Quote
Old 05-25-2011, 04:02 PM   #7
Member
 
Join Date: Oct 2010
Location: Central Indiana (USA)
Posts: 1,318
Rewards Points: 500
Default

AFCI tripping


here's a pic (just found)


Last edited by sirsparksalot; 05-25-2011 at 04:05 PM.
sirsparksalot is offline   Reply With Quote
Old 05-25-2011, 04:29 PM   #8
Electromagician
 
Join Date: May 2011
Posts: 79
Rewards Points: 75
Default

AFCI tripping


check out the diagrams sirsparks has given you, because if you are following my advise in order you may not need to ohm out the circuit. I think that sirsparks is on to the problem that you have not connected the breaker correctly. if that doesn't get you fixed up, then yes as long as you have continuity on those conductors while they are disconnected in the panel the afci will trip. good luck
powerfactor is offline   Reply With Quote
Old 05-25-2011, 04:36 PM   #9
Newbie
 
Join Date: May 2011
Posts: 7
Rewards Points: 10
Default

AFCI tripping


Thanks guys! What an idiot I am....
StevenNW is offline   Reply With Quote
Old 05-25-2011, 04:37 PM   #10
Member
 
Join Date: Oct 2010
Location: Central Indiana (USA)
Posts: 1,318
Rewards Points: 500
Default

AFCI tripping


Quote:
Originally Posted by StevenNW View Post
Thanks guys! What an idiot I am....
Nope, you were intelligent enough to seek advice. How is it turning out?
sirsparksalot is offline   Reply With Quote
Old 05-25-2011, 08:15 PM   #11
Newbie
 
Join Date: May 2011
Posts: 7
Rewards Points: 10
Default

AFCI tripping


Thanks to you folks the problem is solved. I should read instructions sometimes.
StevenNW is offline   Reply With Quote
Old 06-04-2011, 07:51 PM   #12
I ask the impossible!
 
Join Date: Aug 2010
Location: Royal Oak, Michigan
Posts: 1,074
Rewards Points: 508
Blog Entries: 7
Default

AFCI tripping


FYI, even though the OP found his problem to be incorrect connections at the breaker, the procedure for finding a ground wire to equipment ground connection helped me figure out my issue... I had an AFCI circuit that works fine but the last recepts in the circuit hadn't been finished, I did all of them but skipped the next in line, when I put in the last recep which connected to the hot wires, I started getting AFCI trips. I had a ground wire that was contacting a neutral in one of the later outlets.

Advertisement

__________________
Please do NOT consider any "before" picture of my house as any kind of endorsement of any particular construction method. In fact, you should probably assume that if I post a "before" picture, I am posting it because I am soliciting advice on a proper replacement for one of MANY things done wrong by a previous owner.
WillK is offline   Reply With Quote
Reply

Tags
afci


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
HELP - Strange AFCI Tripping Issue chrispy_g Electrical 40 01-12-2011 11:24 AM
AFCI Tripping with PC Power Supply jkma Electrical 0 12-21-2010 06:34 PM
Loss of power and AFCI tripping Sacslc Electrical 14 11-14-2010 10:12 PM
AFCI Breakers Keep Tripping mopowers Electrical 12 09-04-2009 04:11 PM




Top of Page | View New Posts