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-   -   Not getting 120 volts from hot to neutral, but 120 from hot to ground (http://www.diychatroom.com/f18/not-getting-120-volts-hot-neutral-but-120-hot-ground-179258/)

Jimmi328 05-10-2013 05:53 PM

Not getting 120 volts from hot to neutral, but 120 from hot to ground
 
Not getting 120 volts from hot to neutral, but 120 from hot to ground
Hello All,
Iím not getting 120 volts across a hot wire (black) to a neutral wire (white). However; I do get 120 volts across the hot wire to a ground wire.
I originally replace my old garbage disposal to one thatís more powerful. The hot, neutral, and ground wires (from disposal) run through the wall and up to a basic on/off switch that has an electrical outlet next to it (both 15 amps). After hooking up the wiring and before replacing back in the wall; both on/off switch and outlet appeared to work fine.
At this point I bought a modern rocker type switch and square-like socket (15 amps) to replace the outdated ones. This is when the outlet and on/switch would not work. After 3 hours of trouble-shooting, I went back to the old on/off switch and socket and still neither will work.
I measured the voltage across the circuit breaker that controls this this wiring and I get 120 volts; however, at the circuitry for this on/switch from hot to neutral, about 2 volts shows on the meter. From hot to a ground wire though, I get 120 volts.
Iíve checked other circuits in my house and get 120 volts from a hot wire to a neutral wire.
Any advice? I sure hope itís something I donít understand.
Thank you,
Jim

stickboy1375 05-10-2013 05:54 PM

Quote:

Originally Posted by Jimmi328 (Post 1176691)
Not getting 120 volts from hot to neutral, but 120 from hot to ground
Hello All,
Iím not getting 120 volts across a hot wire (black) to a neutral wire (white). However; I do get 120 volts across the hot wire to a ground wire.
I originally replace my old garbage disposal to one thatís more powerful. The hot, neutral, and ground wires (from disposal) run through the wall and up to a basic on/off switch that has an electrical outlet next to it (both 15 amps). After hooking up the wiring and before replacing back in the wall; both on/off switch and outlet appeared to work fine.
At this point I bought a modern rocker type switch and square-like socket (15 amps) to replace the outdated ones. This is when the outlet and on/switch would not work. After 3 hours of trouble-shooting, I went back to the old on/off switch and socket and still neither will work.
I measured the voltage across the circuit breaker that controls this this wiring and I get 120 volts; however, at the circuitry for this on/switch from hot to neutral, about 2 volts shows on the meter. From hot to a ground wire though, I get 120 volts.
Iíve checked other circuits in my house and get 120 volts from a hot wire to a neutral wire.
Any advice? I sure hope itís something I donít understand.
Thank you,
Jim

You changed the splice...

mpoulton 05-10-2013 05:55 PM

Sounds like you have an open or loose neutral connection somewhere in the circuit. Check all your connections in the neutral path from the disposal back to the panel. There's probably a bad connection there somewhere.

MTN REMODEL LLC 05-10-2013 06:13 PM

By square socket, do ya mean a "decora" receptical. Just as above MP and stick said, bet the neutrals wired in the receptical (or in the switch box) came loose. Try remaking them.

joed 05-10-2013 06:19 PM

Tell us what wires are connect to what other wires and switch connections. Then we might be able to tell you what is wrong. Now it sounds like you have an open neutral.

Jimmi328 05-10-2013 06:39 PM

Yes, the words “Decora” (Leviton) are in fact on both boxes. I had no clue that neutrals could be wired within the socket or how this works. But I have something to research now.
Re-make them? The outlet and switch appear to be all one piece.
I will be more pacific and post pictures Joe, after the weekend when I have more time. There is an additional black wire in this metal box that has no power on it. It’s next to the hot black wire. No clue what it's for.
Thank you all for the input.

dmxtothemax 05-10-2013 06:45 PM

[QUOTE=Jimmi328;1176724]
Re-make them? The outlet and switch appear to be all one piece.


He doesn't mean remake the recepticules !
He means remake the connecttions to the recepticules !
Take off the wires one by one,
Make sure there clean and in good condition,
Put the wires back were they came from,
make sure there good and tight.
Use screws not back stabs !
Look for any obvious problems.

k_buz 05-10-2013 06:49 PM

I'd be curious to know if it is a switch loop coming from the disposal.

MTN REMODEL LLC 05-10-2013 06:55 PM

[QUOTE=dmxtothemax;1176728]
Quote:

Originally Posted by Jimmi328 (Post 1176724)
Re-make them? The outlet and switch appear to be all one piece.


He doesn't mean remake the recepticules !
He means remake the connecttions to the recepticules !
Take off the wires one by one,
Make sure there clean and in good condition,
Put the wires back were they came from,
make sure there good and tight.
Use screws not back stabs !
Look for any obvious problems.

OP.... Maybe hold up there a minute.... I thought you might be a little more familiar with electrical.

1) DO YOU HAVE YOUR BREAKER OFF FOR THIS CIRCUIT AND ARE YOU SURE?

2) Are you familiar with how to join (splice) wires with a wirenut (the little colored toothpaste-cap looking do-hickey ) that may be in the box.

stickboy1375 05-10-2013 06:57 PM

Quote:

Originally Posted by k_buz (Post 1176731)
I'd be curious to know if it is a switch loop coming from the disposal.

My guess is that he changed the splice.

MTN REMODEL LLC 05-10-2013 07:13 PM

Quote:

Originally Posted by stickboy1375 (Post 1176738)
My guess is that he changed the splice.

my bet too .... EDIT: except for the recent post about the renegade black wire

MTN REMODEL LLC 05-10-2013 07:18 PM

Quote:

Originally Posted by Jimmi328 (Post 1176724)
Yes, the words ďDecoraĒ (Leviton) are in fact on both boxes. I had no clue that neutrals could be wired within the socket or how this works. But I have something to research now.
Re-make them? The outlet and switch appear to be all one piece.
I will be more pacific and post pictures Joe, after the weekend when I have more time. There is an additional black wire in this metal box that has no power on it. Itís next to the hot black wire. No clue what it's for.
Thank you all for the input.


But Jimmie... aren't you and Coral Gables closer to the Atlantic?:thumbup::thumbup:

Good going

Peter

Jimmi328 05-10-2013 07:42 PM

Switch loop? I probable disconnected this wire and don’t remember how it was wired.
Peter: I made sure the breaker was on when I tested the on/off switch. 120 volts travels from hot to ground but not hot to neutral. Yes, I used the wirenuts to splice wire where necessary and of course turned the breaker off before doing so. (Coral Gables is Miami, Coral Springs is north of Ft. Lauderdale).
Stickboy: Perhaps I missed something while splicing but this concept seems so basic.

sirsparksalot 05-10-2013 08:36 PM

Quote:

Originally Posted by Jimmi328 (Post 1176776)
Switch loop? I probable disconnected this wire and donít remember how it was wired.
Peter: I made sure the breaker was on when I tested the on/off switch. 120 volts travels from hot to ground but not hot to neutral. Yes, I used the wirenuts to splice wire where necessary and of course turned the breaker off before doing so. (Coral Gables is Miami, Coral Springs is north of Ft. Lauderdale).
Stickboy: Perhaps I missed something while splicing but this concept seems so basic.

Jimmy, I may be wrong, but chances are if there's a white wire in a switch box, it's NOT a neutral, and if the white wire is on the switch, it is definitely not a neutral.


PICS?

frenchelectrican 05-10-2013 11:48 PM

Bonjour Jimmi .,

Did you any chance you brought this decora receptale with GFCI verison ? if so you may have the netural in wrong place that what prevent it from running.

However you say this is the only switch that go to the garbage dispoal unit and you have a receptale right next to it ?

If so have you take a photo so we can able assit you on that.

Is other receptales is working as well or is that only one is not working?

And I doubt this is a switch loop but to be on safe side take a photo and count how many cables ( there will be a pair of black et white conductor <wire> for each cable ) then we can able tell where it goes once we get more info.

Merci,
Marc


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