Questions tagged [dimmer-switch]

Planning, installing and troubleshooting circuits using electrical dimmer switches for controlling the brightness of lighting.

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Box fill calcs - math vs reality

Working on a project where I am planning a 3-gang switch box. The box will be a plastic carlton super blue (53 in³). My fill-math works out fine, but I'm wondering about the practical reality of such ...
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Can you use Wemo Smart Switches Long Press to “Fake” a 3-Way Set Up?

I have many Wemo smart switches, smart dimmers and even two of their 3-way switches. However, I don’t have a neutral wire for the 3-way switches, so they’re out. But I have hooked up some other smart ...
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Switch/light wiring issue I cannot figure out

house built in 1967, I have pretty extensive experience with working on the electrical of this house and others in my life, but I am not a pro or electrician. I have redone all of the lights and ...
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1 vote
1 answer
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Wiring Dual Dimmer Switch

I have a dual switch that controls my kitchen lights and my dining lights. It’s in a single pole location but has two switches, top and bottom, one for kitchen and one for dining lights. Currently ...
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Questions about installing a 3-way dimmer switch

I am trying to replace a 3-way switch from Legrand with a dimmer switch from FEIT. I have attached a simple drawing here. Before I make the change, I would like someone to help confirm the electrical ...
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2 votes
2 answers
211 views

4-way switch circuit with Leviton smart dimmers

Now that I've spent two consecutive days mapping out the 4-way circuit to add smart dimmers, I may have a layout that isn't compatible. I'm using Leviton D26HD as the main dimmer and two DD00R ...
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Why are my LEDs too dim in a chandelier [duplicate]

I bought 5 LEDs to put in a chandelier in my living room. However after I put them in I see that they’re far too dim. Here’s the weird part: replace any one of them with one of the old incandescent ...
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1 answer
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Dimmable pool color changing LED lights

For whatever reason, color changing lights for pools are not dimmable (at least Pentair and Jandy brands - e.g. Microbrite Color) - the manual official states as such and warns about damage. Only the ...
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4 answers
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Incandescent bulb into circuit to reduce LED flicker When Dimming

The official Lutron support page for flickering LED bulbs says the following. Is anyone able to explain why that would help stabilize the LED lights and if there's anything similar that can be ...
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2 votes
1 answer
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Old Wiring for new light fixture installation (no ground?)

Replacing and old light with a new light and when I took out the old light old I was concerned about the wiring and that it may not be safe since the previous lights grounding wire was not attached to ...
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1 answer
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Lutron Maestro and companions

I have 3 light switches in the hallway controlling one light (a 4-way (USA) switch set up). I installed a Lutron Maestro switch on position one (has red, black, green and white wire) and the companion ...
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1 answer
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Why is this led light flickering?

Related to this question, link, I have a very similar-looking dimmer and light. The dimmer is very old, at least 20 years, and the light is perhaps 5-8 years old. It never used to flicker. This week ...
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1 answer
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Wiring a light with both a dimmer and a switch

Can someone explain to me how I would wire a single light with both a dimmer and a switch at different locations? I've added a diagram of how I need this to be but I can't get my head around it. I'm ...
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Why are there so many neutral wires in light switch and how do they work with a smart dimmer light switch?

I am having difficulty installing a smart dimmer light switch. I have 3 switches, 2 switches are on one breaker and one is on the other breaker. The problem I believe has something to do with the ...
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1 vote
1 answer
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connecting an intermatic timer switch and a dimmer switch on the same lights

I currently have an Intermatic timer switch on my lights, and I would like to add a dimmer switch next to the timer switch, because the lights are sometimes too bright, is it possible to have both a ...
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1 answer
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Why is my white wire hot?

I have (1) 12/3 wire coming in to the box for the dimmer switch, lights started blinking, 3 lights on this circuit and then they finally went out. When I checked the wires red, black and white, white ...
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1 answer
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Replace 3-way switch with 3-way dimmer

It's my first time doing this kind of work around my house so I just want to confirm my understanding before attempting anything. I want to replace one of the 3-way switch in a room with a 3-way ...
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1 vote
1 answer
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Wiring a 3-way dimmer switch into my house's odd wiring

My kitchen had 2 existing 3-way switches to control the main kitchen light. These three-way switches functioned as expected -- either one would turn the light on or off. When I decided to replace one ...
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1 vote
1 answer
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Is my plan to replace a 3-way dimmer switch with new 3-way rocker switch suitable?

I am replacing a 3-way dimmer with a 3-way rocker switch which has the 2 gold-colored screws, one brassy/black screw, and the ground screw. I just want to confirm something, or allow someone to ...
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3 votes
1 answer
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Is this a 3-way switch (has 5 terminals)? Can I replace it with lutron 3-way switch?

I have kitchen lights that are controlled from 3 different switches (with one switch a dimmer). Now one of the switches (not the dimmer one) is wobbly and I would like to replace it. When I opened it, ...
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3 votes
2 answers
118 views

Can any light fixture be used on a dimmer

I purchased a light and don't know if it is compatible with dimmer switch. I have so far read it is more so the light bulb that that affects compatability and most light fixtures work with dimmer ...
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Weird lighting issue where dimmer affects other lights sharing line voltage

I recently replaced a regular switch with a dimmer switch, and the dimmer switch seems to be affecting my other light that draws from the same line wire. When the dimmer is at max brightness ...
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8 votes
1 answer
1k views

Dimmer without neutral?

I live in an old but gut renovated apartment. There is a ceiling light fixture (LED based) in the living room. It is controlled by two-way switches. I want to add a dimmer to control the light. The ...
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2 answers
76 views

Why are these 2 dimmer switches connected like this and how can I rewire them with 2 traditional switches?

so I have this array of dimmer light switches. I want to replace the middle 2 with traditional switches (well I want to replace them all, but the middle 2 are single pole switches - the outer 2 are 3 ...
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2 votes
2 answers
397 views

How do I replace this very old dimmer switch with a standard switch

There appear to be a lot of furry wires, 1 black, 1 white wire, and no ground. How do I go about wiring this up to a standard switch? And which remaining wires should I cap together?
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1 answer
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A single can light in my kitchen goes off after a while and then comes back on a while later

Our kitchen ceiling lights are can lights in series on three-way switches. One 3-way switch is a dimmer switch. When the lights are turned on, after a while a single can light goes out and then comes ...
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2 votes
1 answer
175 views

Installing a Lutron dimmer with 3 light switches (5 wires)

Ran into an issue trying to replace a light switch with a Lutron dimmer switch. There are three switches for the light. As you can see from the photo, I have 5 wires into the current switch. I only ...
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2 votes
1 answer
67 views

Installed new switches - ground wire connection touches wood?

I ended up swapping out all three switches in my box. The two new dimmer switches are not the same design as the old and these have the ground wire woven through holes in the metal base. (See photo) ...
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4 votes
2 answers
1k views

Replacing existing light switch - what the...?

Located in the US, I have done some basic rewiring of fixtures and have replaced a few switches in this house. But I am stumped as to what is going on in this box. No idea how to proceed and ...
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1 vote
0 answers
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The 12.2w dimmable LED bulbs in living room trio wont work after they first turn on, what changes during that first flick?

Installed a set of 75w equivalent (12.2w) dimmable LED bulbs in my living room to replace a trio of 60w equivalent (8.8w) LEDs that were flickering when i dimmed them. The new bulbs seemed to work ...
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1 vote
1 answer
79 views

Light on dimmer switch will not stay on

I have an LED light bulb on a dimmer switch that will not stay on. If we turn it on just a little bit, it will stay on for a longer time. If we turn it on to full power, it will stay on for a shorter ...
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1 vote
2 answers
37 views

New light switch being controlled by another switch

I installed new light fixture in a mudroom and a Lutron TGCL-153PH-WH dimmer toggle switch for it. I'm adding the switch into a gangbox where there is an existing 3-way light switch for the hallway. ...
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1 vote
1 answer
315 views

Two dimmer switches installed in double gang box

I have two ceiling lights in my kitchen. Each lamp has its own dimmer switch in the same junction box. It is very tight/crowded in the box. I cannot tighten the switches without them being misaligned. ...
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2 votes
1 answer
82 views

Does this light switch wiring seem wrong?

I'm trying to replace this regular light switch with a dimmer. After I open the cover, there are 2 groups of wires from the wall. I don't know why the white wires are not used, but this is the ...
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0 votes
1 answer
35 views

Installing a dimmer

The switch has 2 hot wires red and pink, need help where to connect the cables.
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1 vote
1 answer
56 views

Switching a light fixture but two ground wires

I'm installing a dimmer light switch but when I opened up the box, I see two ground wires tired together and no pigtail. I'm wondering what I should do with that?
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0 answers
47 views

Replaced rotary dimmers now lights not working

When I took off the old rotary dimmers, the hots were already spliced together with a black wire from each of the old switches. I kept the spliced hots together and connected the blacks on the new ...
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0 votes
0 answers
23 views

Dimmer switch cable: L1 L1 X --> X L N?

I have an old dimmer switch that has the following wiring: X, L1 and L2 I would like to replace it with an I lightwave dimmer switch (wiring sheet), which has X, L and N as connection points. Any ...
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Dimmer switch wiring

I'm slightly confused by the wiring of this old dimmer switch (UK based). The black/red part of the dimmer is connected to a light that works fine The blue part of the dimmer (with the white cable) ...
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2 votes
1 answer
155 views

Retrofit LED Recessed Lighting Power-on Delay

I'm replacing my old recessed lighting by retrofitting them with LEDs. I'm using a Lutron Diva DVCL-153P dimmer switch to control these recessed lights, but when set at low dim levels, flipping the ...
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1 vote
1 answer
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2 dimmers in one box, one with ground capped

I have a box with 2 dimmers and one on/off switch. One dimmer (right dimmer in the picture) has the ground connected to the bare copper wire in the ground box. The left dimmer has the ground wire ...
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1 vote
0 answers
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Can I replace two switches with a single dimmer?

In my flat I have two switches on the same wall socket that turn on two different lights. I would like to replace the two small switches with dimmers but given that I'm planning to use them together, ...
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0 answers
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Lutron Skylark SCL-153P dimmer wiring help

I have installed two Lutron Skylark SCL-153P dimmers. The one on the left works and other does not. For both dimmers, I have connected black to black, green to ground (copper wire), red and white to ...
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24 views

Celling fan work only when separate light switch is on

I replaced one of the light switches with a dimmer now ceiling fan only works when the light switch is switched on.
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2 votes
1 answer
39 views

Adding Dimmer to Fan Light

I'm looking to add a dimmer switch to the lights on my ceiling fan and have the fan part of it work by pulling the chain. The ceiling fan is pretty standard, 4-wire as shown below. Is the following an ...
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1 vote
1 answer
101 views

3 black wires, 2 white wires for wiring up a new switch?

I'm looking to install a Leviton Decora smart dimmer, 2nd gen to replace a switch in my master bedroom. I unscrewed my current switch from the wall and found the following set up - 3 black wires, 2 ...
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8 votes
3 answers
2k views

Can a 12 gauge wire be clamped onto a light switch using the side screw?

I was simply replacing a existing dimmer switch for my kitchen lights with a newly bought Feit electric smart 3 way dimmer switch. After studying, I have located where the dimmer switch should be ...
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1 vote
1 answer
421 views

Ceiling fan light powered by two 3-way switches, but also by fan's single pole switch. Is it safe to replace the 3-way switch with a smart dimmer?

I have a very weird setup for my living room, and at first I didn't actually realize what was happening until I started looking into replacing a 3-way switch with a 3-way smart dimmer (Leviton DZ6HD ...
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2 votes
2 answers
457 views

I'm trying to install a smart switch into a two-gang box. There are three neutral wires tied together, do I just add a fourth one from the switch?

I have a two-gang box where one of the switches is a single-pole switch, and the other one is a 3-way switch. I'm trying to replace the single-pole switch with a smart dimmer, the instructions don't ...
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  • 135
0 votes
0 answers
42 views

Puzzled by breaker trip

Installing a Wemo (switch 1) to replace a 2-pole switch that controls a single outdoor light, which is on the same breaker as the other switch and dimmer in this box. I made connections as illustrated ...
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