32
votes
Accepted
What could be causing changes to a smart bulb to affect a regular bulb on the same circuit?
You're looking at the problem upside down. You are thinking the smart bulbs are causing it. Actually, the Lutron Caseta dimmer is causing it.
The smart bulbs are behaving normally, however their ...
20
votes
Can a 12 gauge wire be clamped onto a light switch using the side screw?
Using the hole(s) in the back is called a "back stab", and, while technically code-legal, they're frowned upon because they can come loose and cause arcing and, if left alone long enough, ...
- 29.4k
19
votes
Accepted
How can I install an on/off indicator for a lighting circuit?
It sounds like you have light bulbs or fixtures directly controlled by Alexa/Google Home. A better solution, though sometimes a bit more work to install, is a smart switch. With a smart switch, the ...
10
votes
Accepted
Odd wiring setup in light switch
Someone ran out of white wire
It appears the previous installers ran out of white wire to use for running neutrals, so they grabbed the spool of green wire off the back of the truck to keep the job ...
- 72k
10
votes
Can a 12 gauge wire be clamped onto a light switch using the side screw?
Yes, I see several problems.
Wire just stuck under a screw, and not using a proper shepherd's hook with a more than 180 degree bend (i.e. squeezing it together after forming it. Watch a Youtube ...
9
votes
Accepted
Can I connect the neutral wire ends via a single switch terminal (without a pigtail)?
"Never" is a bit strong.
This is not a plain "screw terminal" where that would be true. This is a "screw and clamp" and appears to be designed to correctly hold 2 wires, ...
- 133k
9
votes
Running neutral wire between two circuits
The reason this trips the breaker isn't really relevant, since you're not allowed to do this thing.
You can't steal neutrals from other boxes
NEC 300.3 all related wires must be together in the same ...
9
votes
When installing a smart switch, can I pigtail off of the neutral from the existent outlet in the same box on the same circuit?
Yes, that's the correct neutral.
Hot goes to inside receptacle and then to switch. Which means the receptacle controlled by the switch, and any smart switch itself, must use the same neutral as the ...
9
votes
Why are there three sets of wires for two switches, and how to wire up the neutral?
To clarify a little, your setup is one of two common setups:
(Ignoring ground - everything should have ground, all grounds always go together.)
One incoming cable from the circuit breaker (may stop ...
8
votes
Is there a way to remotely control gas valve?
Yes, there are electronically controlled gas valves.
A better idea might be to install a "grill timer". It's like a kitchen timer that you twist to set the time, but instead of ringing a ...
- 18.8k
8
votes
Accepted
Alternatives to running a single Neutral wire?
My plan: I can get 10' of 14/3 (it's the cheapest thing by the foot that I can find available at my hardware store... I could get 12/3 for a little more
Hold on there, you need to go find your ...
7
votes
Accepted
Box too small for TP link Kasa smart switch
This is a common problem. I had a similar problem simply replacing a ~ 60-year-old 2-wire duplex receptacle with a new (but nothing fancy, not GFCI) 3-wire grounded duplex receptacle. The solution: A ...
6
votes
Trying to install smart switches - came across something that looks wrong
The nut of the problem is the ground wire joining the neutrals in drawing 1. This is a bootlegged attempt to fix a fundamental problem of bringing 5 wires: 2 travelers, always-hot, neutral and ...
6
votes
Why do these LED light bulbs flicker when my remote control has turned them off?
The remote you use to turn the light on and off is not compatible with LED bulbs. One reason people love LED bulbs is because they use so little power. Unfortunately, some devices in the past used ...
- 26.6k
6
votes
Odd wiring setup in light switch
As you know, "green = ground" and "white = neutral". As you probably also know, ground and neutral should only be connected in one place (main panel) and not in individual switches or other devices. ...
6
votes
Live wire spliced in a switch to provide power to other parts of the room!
Your analysis of the current situation is correct and quite normal. The fact that this type of switch allows two wires to be attached under the switch makes it that much easier to do, as opposed to ...
- 7,852
6
votes
Running neutral wire between two circuits
You are NOT allowed to do that, for several reasons:
If both circuits happen to be on the same leg/phase of your utility service, you can overload the neutral back to the panel by a factor of two, ...
- 2,776
6
votes
Accepted
Which Circuit Does this Switchbox Common Wire Belong To?
There is no such thing as "common" in AC mains wiring. Each circuit is wired in a full loop. If you do automotive wiring, you tend to think of the metal vehicle chassis as the "common&...
6
votes
Accepted
Why are there three sets of wires for two switches, and how to wire up the neutral?
Note the updated diagram at the bottom with some additional labeling.
Why are there only three black wires, and not four? I'd expect each switch to have two black wires, one load and one line.
You ...
- 29.4k
5
votes
Accepted
Confused by wiring in box
It's simply a splice. They are using the screw and the backstab to accomplish what they could do with a pigtail. In particular, they are grabbing "always-hot" because this is the first switch. ...
5
votes
Odd wiring setup in light switch
Mark that green wire white
That green wire behaves at both ends like a neutral. I think it is one. I would get some white tape and spiral wrap it around that green wire, to mark it most of the ...
5
votes
Do metal outlet boxes act as grounds?
Switches (only) can ground through the mounting screws
No need to run a ground wire to the switch. Presuming the switch has a metal yoke, it will ground via the grounding screws to the metal box (...
5
votes
How does a Smart Switch that does not require a neutral work?
Whoever you're listening to on this is spouting technobabble
I'm sorry to say, but you probably should find a better source to read, as whoever's been feeding you information is spouting total ...
- 72k
5
votes
Accepted
Can I steal a neutral from another fixture on the same circuit?
So, given the comments, although electrically this would work, it is unsafe and a code violation. This is because the hot and neutral are to be in the same raceway to have the magnetic field of the ...
- 243
5
votes
How can I install an on/off indicator for a lighting circuit?
What you need is a combination of smart switch and smart bulb
You are correct that smart bulbs allow local control of color.
However you still need at-the-switch control of on/off, and that is because ...
5
votes
Adding a smart switch to a box originally containing two single-pole switches
Legal colors in conduit wiring:
ALWAYS-HOT: black, brown, red, orange, yellow, pink, blue, or purple
SWITCHED-HOT: black, brown, red, orange, yellow, pink, blue, or purple
There's a convention of ...
5
votes
Accepted
Does this 3-Way Wiring Violate 300.3(b)?
No, you're actually fine on that front here
The C-D conduit meets 300.3(B) despite not having a neutral in it for the same reason old-style switch loops were compliant with that rule: all the power is ...
- 72k
5
votes
Accepted
How do I search for a mixed smart-normal switch plate?
The large rectangular opening is called "Decora"
There are only 3 popular shapes:
Small slot: the traditional switch, like you have now.
Two ovals: for traditional receptacles (also dual ...
5
votes
Selecting smart plug
Two very important safety things to consider:
Certification
Electrical devices should, in general, be tested and certified by an independent laboratory. The two that come to mind, at least for the US, ...
5
votes
Smart switch not working with correct setting
I see a whole bunch of white in the back. I suspect you pulled one white neutral at random from a bunch and connected that to the switch. All neutrals need to stay together - i.e., in one wire nut or ...
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