Split Receptacle Half Dead - 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!

Like Tree1Likes
  • 1 Post By joed
Reply
 
Thread Tools Search this Thread
Display Modes
Old 02-24-2019, 04:02 PM   #1
Super Moderator
 
joed's Avatar
 
Join Date: Mar 2005
Location: Welland, Ontario
Posts: 20,165
Rewards Points: 31,642
Blog Entries: 11
Default

split receptacle half dead


Here is a poser that has been solved. I just want to see what others think

One split wired receptacle on the circuit. Only half of the receptacle works.
Voltage at breaker from each terminal to neutral is 120 volts with a proper wiggy meter.
Swap black and red at breaker same problem.
Disconnect black and red short together at one end. Ohms as connected.
Measure voltage across breaker with wires off 240 volts.
joed is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 02-24-2019, 04:39 PM   #2
Member
 
hkstroud's Avatar
 
Join Date: Mar 2011
Location: Virginia
Posts: 3,351
Rewards Points: 6,684
Default

Re: split receptacle half dead


A double breaker?
__________________
Harold,
The Left Handed Widget Maker
hkstroud is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 02-24-2019, 04:45 PM   #3
A "Handy Husband"
 
rjniles's Avatar
 
Join Date: Feb 2007
Location: South Carolina Low Country
Posts: 11,094
Rewards Points: 802
Default

Re: split receptacle half dead


Tab is open between the neutral screws at the receptacle.
__________________
My electrical answers are based on 2017 NEC, you may have local amendments.

Location: Coastal South Carolina
rjniles is online now   Reply With Quote
Sponsored Links
Advertisement
 
Old 02-24-2019, 05:09 PM   #4
Super Moderator
 
joed's Avatar
 
Join Date: Mar 2005
Location: Welland, Ontario
Posts: 20,165
Rewards Points: 31,642
Blog Entries: 11
Default

Re: split receptacle half dead


Double pole breaker.
More clues for you.

Move wires to another DP an all is well.
Put wires onto breaker and only measure 87 volts. Measured 240 with no wires. Current check show 0 amp current on both wires.
joed is offline   Reply With Quote
Old 02-24-2019, 05:49 PM   #5
Remodel and New Build GC
 
MTN REMODEL LLC's Avatar
 
Join Date: Sep 2010
Location: Colorado @ 7651'
Posts: 8,966
Rewards Points: 1,744
Default

Re: split receptacle half dead


Disconnect black and red short together at one end. Ohms as connected.


Joed.... What do you mean by "Ohms as connected"

Do you just mean a very nominal/small ohms reading consistant with normal continuity.?
__________________
Never stop learning (xcep fer speling en typeing)
MTN REMODEL LLC is offline   Reply With Quote
Old 02-24-2019, 06:09 PM   #6
Member
 
Join Date: May 2018
Location: New York State
Posts: 1,028
Rewards Points: 2,050
Default

Re: split receptacle half dead


Quote:
Originally Posted by joed View Post
Double pole breaker.
More clues for you.

Move wires to another DP an all is well.
Put wires onto breaker and only measure 87 volts. Measured 240 with no wires. Current check show 0 amp current on both wires.

Is that 87V measurement under a load, or just with wires connected but no load at the receptacle?



I'll guess there is a high resistance on one set of contacts inside the breaker.
RAL238 is offline   Reply With Quote
Old 02-24-2019, 06:18 PM   #7
Remodel and New Build GC
 
MTN REMODEL LLC's Avatar
 
Join Date: Sep 2010
Location: Colorado @ 7651'
Posts: 8,966
Rewards Points: 1,744
Default

Re: split receptacle half dead


Will yo tell us about the loads on the black and red circuits...??? and how they got in series...???
__________________
Never stop learning (xcep fer speling en typeing)
MTN REMODEL LLC is offline   Reply With Quote
Old 02-24-2019, 06:28 PM   #8
Super Moderator
 
joed's Avatar
 
Join Date: Mar 2005
Location: Welland, Ontario
Posts: 20,165
Rewards Points: 31,642
Blog Entries: 11
Default

Re: split receptacle half dead


No loads.
joed is offline   Reply With Quote
Old 02-24-2019, 06:30 PM   #9
Remodel and New Build GC
 
MTN REMODEL LLC's Avatar
 
Join Date: Sep 2010
Location: Colorado @ 7651'
Posts: 8,966
Rewards Points: 1,744
Default

Re: split receptacle half dead


Quote:
Originally Posted by MTN REMODEL LLC View Post
Disconnect black and red short together at one end. Ohms as connected.


Joed.... What do you mean by "Ohms as connected"

Do you just mean a very nominal/small ohms reading consistant with normal continuity.?

??????
__________________
Never stop learning (xcep fer speling en typeing)
MTN REMODEL LLC is offline   Reply With Quote
Old 02-24-2019, 06:31 PM   #10
Super Moderator
 
joed's Avatar
 
Join Date: Mar 2005
Location: Welland, Ontario
Posts: 20,165
Rewards Points: 31,642
Blog Entries: 11
Default

Re: split receptacle half dead


Quote:
Joed.... What do you mean by "Ohms as connected"
Shorted as expected. It was a test to see if one of the wires was open. Test showed continuity of both red and black wires.
MTN REMODEL LLC likes this.
joed is offline   Reply With Quote
Old 02-24-2019, 07:36 PM   #11
Super Moderator
 
joed's Avatar
 
Join Date: Mar 2005
Location: Welland, Ontario
Posts: 20,165
Rewards Points: 31,642
Blog Entries: 11
Default

Re: split receptacle half dead


The problem was a bad breaker. I will cut it open see what it looks like.
It was an odd problem to find. I even took the breaker out an measured each side for continuity. Something strange about when I attach the wires and voltage across the poles went to 87.
joed is offline   Reply With Quote
Old 02-24-2019, 07:50 PM   #12
Super Moderator
 
joed's Avatar
 
Join Date: Mar 2005
Location: Welland, Ontario
Posts: 20,165
Rewards Points: 31,642
Blog Entries: 11
Default

Re: split receptacle half dead


Here it is. Someone at some time had a dead short, possibly more than one.

Since this is a split wired receptacle I would guess someone who didn't know better probably replaced it without cutting the tab and tried several times resetting it.

split receptacle half dead-15-amp-breaker-001-small-.jpg

split receptacle half dead-15-amp-breaker-002-small-.jpg

Quote:
Originally Posted by RAL238 View Post
Is that 87V measurement under a load, or just with wires connected but no load at the receptacle?

I'll guess there is a high resistance on one set of contacts inside the breaker.
I would say that was probably true.

Last edited by joed; 02-24-2019 at 07:54 PM.
joed is offline   Reply With Quote
Old 02-24-2019, 07:57 PM   #13
Super Moderator
 
joed's Avatar
 
Join Date: Mar 2005
Location: Welland, Ontario
Posts: 20,165
Rewards Points: 31,642
Blog Entries: 11
Default

Re: split receptacle half dead


Do you think I could file the points and put it back together?
joed is offline   Reply With Quote
Old 02-24-2019, 09:09 PM   #14
Member
 
Msradell's Avatar
 
Join Date: Sep 2011
Location: Louisville Kentucky
Posts: 2,900
Rewards Points: 1,094
Default

Re: split receptacle half dead


Quote:
Originally Posted by joed View Post
Do you think I could file the points and put it back together?
You are kidding aren't you?
__________________
Written using Dragon Naturally Speaking
Msradell is offline   Reply With Quote
Old 02-24-2019, 09:25 PM   #15
Super Moderator
 
joed's Avatar
 
Join Date: Mar 2005
Location: Welland, Ontario
Posts: 20,165
Rewards Points: 31,642
Blog Entries: 11
Default

Re: split receptacle half dead


Quote:
Originally Posted by Msradell View Post
You are kidding aren't you?
Of course.

Hence the smilies.
joed 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
One duplex receptacle split to be controlled by 2 switches pex006 Electrical 52 04-02-2014 12:10 PM
230v from split unit a/c to receptacle Def.Eah Electrical 12 06-15-2013 08:52 PM
split receptacle on three way switch suseagulls Electrical 17 08-05-2010 11:08 AM
how to wire romex to 2 3 ways to a half hot receptacle smoothinstall Electrical 3 11-30-2008 10:56 PM
Half Dead Tree handy man88 Landscaping & Lawn Care 11 06-30-2008 11:21 PM




Top of Page | View New Posts