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  • Nov 14th, 2017 6:52 pm
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Feb 29, 2012
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Your house doesn't have a neutral wire? Wow, it's a miracle that you have electric power then, because you require a hot lead and a neutral lead to draw power. :)

I'm sure you mean that some or all of your light switch boxes were wired without a neutral connection in the box? A neutral is not required for a light switch, and that is allowed by code. In that's the case, then you can't install any powered electronic device like a smart switch in the box without running a new power line because it can't draw power from your household AC without a neutral connection.

An alternative is to use smart bulbs, since they are powered as long as you leave the light switch always on. If you just want to try one or two smart bulbs to see what you could do with smart lighting, the TP-Link WiFi bulbs are on sale at BB right now, and they don't require a hub or any other accessories beyond household WiFi. But it you get into smart bulbs in a bigger way, it would be better to go with a system like Phillips Hue. Costs more up-front for the hub, but the bulbs are cheaper.

As for a smart switch/dimmer working without a neutral wire, it can't. Any electronic device needs power to operate. These devices get power from your household AC in the box where they are installed. You only get AC power by connecting to a hot lead and a neutral lead (connecting to ground would be a ground fault, a big No-No that wouldn't work properly). When you have just 2 wires in a switch box, the correct code connection is that the switch is interrupting the hot lead to the light, which in turn has a neutral connection on the other side. In theory you could draw power across those two leads, but only by running power through the light bulb even when it's off. That would only work with an incandescent light bulb, and it would cause the light bulb to light up dimly when it's supposed to be off. In any case it's not allowed by code.
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Mar 23, 2008
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Faith24 wrote:
Nov 9th, 2017 6:23 pm

As for a smart switch/dimmer working without a neutral wire, it can't. Any electronic device needs power to operate. These devices get power from your household AC in the box where they are installed. You only get AC power by connecting to a hot lead and a neutral lead (connecting to ground would be a ground fault, a big No-No that wouldn't work properly). When you have just 2 wires in a switch box, the correct code connection is that the switch is interrupting the hot lead to the light, which in turn has a neutral connection on the other side. In theory you could draw power across those two leads, but only by running power through the light bulb even when it's off. That would only work with an incandescent light bulb, and it would cause the light bulb to light up dimly when it's supposed to be off. In any case it's not allowed by code.
Someone should tell Lutron that their Caseta switches don't work... I'm sure they would be surprised.

https://community.smartthings.com/t/how ... l/20699/11

And for the previous poster who said his LED's don't work with the Caseta switches, maybe check this list out:
http://www.lutron.com/technicaldocument ... ystems.pdf

It's their "list of compatible bulbs". See if your LED's were on there.

C
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Feb 29, 2012
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CNeufeld wrote:
Nov 9th, 2017 6:58 pm
Someone should tell Lutron that their Caseta switches don't work... I'm sure they would be surprised.

https://community.smartthings.com/t/how ... l/20699/11
From the link it sounds like they are doing exactly what I suggested is not a good idea, i.e., leaking a little current through the bulb to obtain power. And the posters there said it wasn't working for them until they connected the neutral lead.
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Jan 31, 2007
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I found these at home depot, you were right they do exist. https://www.homedepot.ca/en/home/p.lutr ... 20945.html
I installed them, I tried two 4 different leds bulbs, the issue is that dimming works, but they cant be turned off. When I press the off button they stay on a very low light, dont want to go off. With a regular old style bulbs it goes off all the way. They do say they work with led bulbs also. Not sure what could be wrong.
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Mar 23, 2008
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EEE2 wrote:
Nov 9th, 2017 10:23 pm
I found these at home depot, you were right they do exist. https://www.homedepot.ca/en/home/p.lutr ... 20945.html
I installed them, I tried two 4 different leds bulbs, the issue is that dimming works, but they cant be turned off. When I press the off button they stay on a very low light, dont want to go off. With a regular old style bulbs it goes off all the way. They do say they work with led bulbs also. Not sure what could be wrong.
The manual covers an adjustment procedure. We had to do that with our lights.

C
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golden wrote:
Nov 9th, 2017 8:37 am
I think you are out of luck. Almost every switch or dimmer on the market requires a neutral wire. I heard about one old model that doesn't require one but not sure.
CNeufeld wrote:
Nov 10th, 2017 2:13 am
The manual covers an adjustment procedure. We had to do that with our lights.

C
I don't see anywhere about this in the manual.
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Jan 31, 2007
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Sorry it's the Lutron PD-6WCL-WH-R-C. This switch works with no neutral and LEDs. Downside it's not zwave and doesn't seem to fully turn off leds bulb.
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CNeufeld wrote:
Nov 10th, 2017 10:02 am
https://www.lutron.com/technicaldocumen ... 0sheet.pdf

http://www.lutron.com/en-US/Products/Pa ... ocialMedia

Just did a google search for your "6WCL adjustment"... If that fails, call Lutron support, I guess. I just know the ones I gave you a link to.

C
The weird thing I did provide the correct model but my switches don't have that button. I'll send a pic when I get.home.
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EEE2 wrote:
Nov 10th, 2017 1:21 pm
Thanks alot this is very usefull information. I am surprised I didnt get this with my switch when it was new. I only have installation instructions, nothing about adjustments.
Bad news I just tried doing these steps and the led bulb still won't fully go off.
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Mar 23, 2008
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EEE2 wrote:
Nov 10th, 2017 6:15 pm
Bad news I just tried doing these steps and the led bulb still won't fully go off.
What bulbs are you using?

C

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