GFI / Switch Combo Install

Reply

  #1  
Old 02-06-13, 08:45 AM
Member
Thread Starter
Join Date: Feb 2013
Location: USA
Posts: 2
Received 0 Votes on 0 Posts
GFI / Switch Combo Install

My husband is wiring a GFI and separate light switch into the bathroom. The GFI also controls an outlet across the room these components are working. He capped all of the whites together and we had 120vs to both the main light (which we tested and it turned on) and the light over the vanity (which we tested with power meter). However, with the whites all capped together the lights could not be turned off. He tried a few different ways, but cant seem to wire it so that the GFI and outlet will stay on and the lights will turn on and off. Do you have any suggestions or diagrams that you can share to how to wire the light switch properly so it will turn on and off?

The GFCI is independently wired to the source. All's well with the GFCI and bridged outlet...power to both. Do the neutral wires for both light fixtures need to be connected to the source neutral? The source load wire is split with one leg to the GFCI and one to the switch. The light fixture loads are bridged to a common single wire hooked to the top screw of the switch with the source load connected to the bottom screw. The two fixture neutrals are wire-nutted to each other. Why are the lights constantly on, regardless of the switch's position?
11 minutes ago
 
Sponsored Links
  #2  
Old 02-06-13, 09:48 AM
Nashkat1's Avatar
Member
Join Date: Mar 2012
Location: USA
Posts: 8,470
Received 1 Vote on 1 Post
Do the neutral wires for both light fixtures need to be connected to the source neutral?
Yes. Here is my suggestion:

The incoming power needs to be connected to the brass LINE terminal on the GFCI and one terminal on the switch. The incoming neutral needs to be connected to the silver LINE terminal on the GFCI and to the two neutrals for the lights.

The two load wires for the lights need to be connected to the other terminal on the light switch and the two wires for the second receptacle need to be connected to the LOAD terminals on the GFCI. It sounds like you've already done most of this, but it won't hurt to double-check.

The puzzling thing is that you say the lights can't be turned off. It would make more sense if they wouldn't come on. Make sure everything is connected the way I described it and see if that works. If not, just post back and we'll work on it some more.
 
  #3  
Old 02-06-13, 11:10 AM
Member
Thread Starter
Join Date: Feb 2013
Location: USA
Posts: 2
Received 0 Votes on 0 Posts
That seems to be the exact way he wired it - and he also used a different switch than the original (after he tried with the original) to ensure that it wasn't something wrong with the switch.

We're just kind of stumped. ha ha
 
  #4  
Old 02-06-13, 11:15 AM
ray2047's Avatar
Member
Join Date: Mar 2006
Location: USA
Posts: 33,597
Received 13 Votes on 11 Posts
<Just guess testing> Try just wiring the switch up with the GFCI not connected and see if you can get just the switch and light to work.
 
  #5  
Old 02-06-13, 12:23 PM
Nashkat1's Avatar
Member
Join Date: Mar 2012
Location: USA
Posts: 8,470
Received 1 Vote on 1 Post
It sounds like one or two of the wires has been mis-identified ans mis-connected. Let us know the results of the test Ray suggested. The other thing you can do is take all of the wires apart and start over.

One quick question: Does the power come to the light fixture from the panel, and then go to the switch and the GFCI?
 
  #6  
Old 02-06-13, 02:29 PM
Nashkat1's Avatar
Member
Join Date: Mar 2012
Location: USA
Posts: 8,470
Received 1 Vote on 1 Post
Here's a test that I think might tell you more:

Leave the GFCI wiring as it is for now. Remove the switch and stick a cap on the two wires that were attached to it. Turn the power back on and see if the light comes on.

If the light doesn't come on, you've got a bad switch. If it does come on, then it's connected to power without going through the switch. If that's the case, turn the power off and take apart the splice for the two light wires. If that doesn't turn the light off, post back and we'll work from there.
 

Last edited by Nashkat1; 02-06-13 at 05:40 PM. Reason: typo
Reply

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


Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: