Converting 3-way light switch to WeMo light switch

Reply

  #1  
Old 10-19-16, 12:31 PM
Member
Thread Starter
Join Date: Oct 2016
Posts: 5
Received 0 Votes on 0 Posts
Converting 3-way light switch to WeMo light switch

I am trying to do the same as in this old thread:

http://www.doityourself.com/forum/el...ht-switch.html

I have a 3-way switch controlling my outside porch light. I want to replace the switch closest to the light (I'll call it switch B just for reference), with the WeMo light switch, and not the one further away by the garage (I'll call it switch A)

I have a few questions :

1) Do I need to disconnect all the wires from switch A since it cannot be used after WeMo replaces switch B, or can I leave the switch taped to prevent usage?

2) If all wires from switch A are disconnected, is connecting the WeMo in place of switch B a easy fix (ie. as explained in the product's directions for installation - white to white, blacks to black and ground to ground)?

3) Before turning off the breaker, should switch B be in the "on" position when I connect the WeMo switch?

These are some of the questions that popped in my head as I read the thread. I have attached a picture of switch B.
Many thanks!
Name:  image1.jpg
Views: 2754
Size:  32.7 KB
 
Sponsored Links
  #2  
Old 10-19-16, 02:00 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 53,053
Received 370 Votes on 347 Posts
Welcome to the forums.

I see your 3w switch in the picture. What do you have for cables in that box ?
I see what looks a two wire cable with the white wire chopped off.

Most of those switches require a neutral and from what I see you may not have one there.
I'm going to guess you have 2) two wire cables as I don't see any red wires.

I may need to see the wiring at the other end too.
 
  #3  
Old 10-20-16, 09:22 AM
Member
Thread Starter
Join Date: Oct 2016
Posts: 5
Received 0 Votes on 0 Posts
Thank you for your reply. I will send you a pic of the inside as well, this evening.
 
  #4  
Old 10-21-16, 09:12 AM
Member
Thread Starter
Join Date: Oct 2016
Posts: 5
Received 0 Votes on 0 Posts
Attaching more pictures below. Please let me know if these help. Thank you again for your help and guidance.
Name:  image1.jpg
Views: 2546
Size:  42.0 KB

Name:  image2.jpg
Views: 2538
Size:  35.3 KB
 
  #5  
Old 10-21-16, 10:22 AM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 53,053
Received 370 Votes on 347 Posts
You have two black wires and one white wire on the B switch. When you remove that switch to install the WeMo switch..... identify the black wire that is on the black screw. That's important. Put some colored tape on it.

The black wire on the black screw is the light connection.
The other black and white will be removed from the switch and combined. This is the hot connection.
The neutral is the white connection with the four white wires in the wirenut.

With the white and black combined.... switch A can be left untouched. The light will work with the switch in either position.
 
  #6  
Old 10-21-16, 03:07 PM
Member
Thread Starter
Join Date: Oct 2016
Posts: 5
Received 0 Votes on 0 Posts
Post

Thank you. I notice that on the WeMo, there are 2 black wires, one white and 1 green.

So, I connect:

1) The black wire from the black screw (switch B) to one of the black wires from WeMo.
2) Combine the remaining black wire and the white wire (switch B)
3) The 4 white wires (in the wirenut) to 1 white wire from WeMo?
4) Also, what do I connect to the remaining black wire and green wire from WeMo?

I apologize if I am being repetitive. I am trying to make sure I don't start a fire.

Attaching a picture of WeMo:

Name:  dMGWWma.jpg
Views: 3482
Size:  30.0 KB
 

Last edited by PJmax; 10-21-16 at 03:21 PM. Reason: labled picture
  #7  
Old 10-21-16, 03:22 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 53,053
Received 370 Votes on 347 Posts
I added labeling to your picture. The blacks make a difference where they are connected.
 
  #8  
Old 10-23-16, 02:46 PM
Member
Thread Starter
Join Date: Oct 2016
Posts: 5
Received 0 Votes on 0 Posts
Thank you very much. Let me try this and get back to you.
 
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
Display Modes
 
Ask a Question
Question Title:
Description:
Your question will be posted in: