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 Trouble replacing switch with GE Z-Wave Switch
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stephenjacobgoldberg
Starting Member

USA
4 Posts

Posted - 11/18/2017 :  12:34:29 PM  Show Profile  Reply with Quote
I am trying to replace a regular light switch with a GE ZW4005 z-wave switch. I have done this a few times before; however, this switch is relayed(not sure if that is the right word) with two other switches.

The existing switch has four black wires and a ground. Two of the black are up top, two are at the bottom. Nothing on the switch is labeled so I am not sure what is load.

The new GE switch has four options for wiring.

1. Load
2. Line
3. Neutral
4. Traveler




New Switch
https://s3-us-west-2.amazonaws.com/waoler/20171118_125648.jpg


Existing switch with other switches
https://s3-us-west-2.amazonaws.com/waoler/switch.jpg

Existing Switch Wiring
https://s3-us-west-2.amazonaws.com/waoler/switch_2.jpg


I assumed the two top black wires were load. I plugged the two top into load and the two bottom into line and nothing happened.

I then tried the two bottom in neutral and still nothing; however, the other two switches worked.


Any help would be enormously appreciated.


STEPHEN GOLDBERG

stusviews
Advanced Member

USA
15854 Posts

Posted - 11/18/2017 :  2:15:36 PM  Show Profile  Visit stusviews's Homepage  Reply with Quote
One of the loops around the screw is line, the other is load. There's now way to tell which is which without measuring the voltage. Do you have a meter?

OTOH, it's unusual to have more than one wire on the load side. Does the switch control more than one load?

Also, the new switch requires a neutral wire. Do you have a neutral wire in the switch box?

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stephenjacobgoldberg
Starting Member

USA
4 Posts

Posted - 11/19/2017 :  09:08:27 AM  Show Profile  Reply with Quote
Hi Stu -

Thank you so much for the reply!

I do have a meter. How do I test properly?

There do not appear to be any other wires in that box. Could I wire something from one of the other two switches next to it?
Do I need a new switch?

Thanks again for your help.

SG

STEPHEN GOLDBERG
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stusviews
Advanced Member

USA
15854 Posts

Posted - 11/19/2017 :  2:12:32 PM  Show Profile  Visit stusviews's Homepage  Reply with Quote
Describe all the wires and switches in the switch box.

For the switch that you posed an image, there are two separate wires connected to each screw. Where do they go? What else are they connected to?

The switch box appears to be metal. Is so, then there's probably no ground wires. Is that so?

Are there any white (or gray) wires in the switch box?

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stephenjacobgoldberg
Starting Member

USA
4 Posts

Posted - 11/19/2017 :  5:56:09 PM  Show Profile  Reply with Quote
Here is a wiring diagram I created of the switches

https://s3-us-west-2.amazonaws.com/waoler/switch_wiring_diagram.pdf

Switch 1 is the switch I am trying to replace. It turns on a few outdoor lights.

Switch 2 turns on 1 overhead lamp inside the house.

Switch 3 turns on 1 other overhead lamp inside the house.

In the diagram the yellow wires are copper ground. Each switch is grounded.

In the diagram the blue circles are conduits into the wall.

There are a significant amount of white wires running behind the switches however they are not connected to any of the switches and simply run through the conduits.


Thanks again for all the help!




STEPHEN GOLDBERG
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stusviews
Advanced Member

USA
15854 Posts

Posted - 11/19/2017 :  7:35:40 PM  Show Profile  Visit stusviews's Homepage  Reply with Quote
The bundle of white wire is the neutral bundle. The neutral wire never connects to a standard switch.

Each conduit should have at least two wires. Did you omit the white wires?

Why do you have two wires between switch 2 and switch 3; one bold, one not?

It appears that switch 2 is connected to the line at both ends. That can't be correct.

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stephenjacobgoldberg
Starting Member

USA
4 Posts

Posted - 11/20/2017 :  5:08:27 PM  Show Profile  Reply with Quote
I did omit the white wires. There is one coming out of each conduit.

I appologize if the diagram is confusing.

That is not intended to be two wires going from 2 to 3, but rather 1 going from 1 to 3 and 1 going from 2 to 3.


STEPHEN GOLDBERG
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stusviews
Advanced Member

USA
15854 Posts

Posted - 11/20/2017 :  7:35:57 PM  Show Profile  Visit stusviews's Homepage  Reply with Quote
The black wire going to all three switches is line. White, if it's as you say, is neutral. You will not need the traveler for the new switch.

Connect the wires on switch 3 that are not line, to load on the new switch.

But, I still don't get why switch 2 connects to line at both ends.

Stu's Views is Education and Fun. What do YOU want to VIEW today?
MathLandia High school mathematics learning fun.
Both Stu's Views and MathLandia are free websites that do not sell anything.
Saving energy is not always free. Be a world saver.


Please don't PM with questions that can be asked in a forum.
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