Questions tagged [dimmer-switch]

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

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18
votes
6answers
86k views

What should I do to increase the dimming range of LED bulbs?

We started doing most of our homes in LED last year. I am a big dimmer fan and would pretty much put a dimmer on any light switch. One thing that I haven't gotten down is the dimming range of the ...
14
votes
1answer
1k views

What could be causing changes to a smart bulb to affect a regular bulb on the same circuit?

We have a Lutron Caseta dimmer switch which controls a set of four downlights. I tried replacing the bulbs with Hue downlights (knowing full well that these wouldn't play well with the dimmer, except ...
11
votes
3answers
2k views

Can someone explain how this makes sense electrically?

The wiring in my house is... odd. Nearly every pair of outlets has one of the outlets connected to a light switch. Sometimes that switch is quite far from the outlet even when there are other closer ...
10
votes
6answers
21k views

Why do LED Lights Flicker on Low Dimmer Setting

I just wired up the following schematic and both sets of LED recessed lights will flicker when dimmed below full power. It doesn't matter what the other dimmer is set to (full power, low power, off). ...
9
votes
8answers
9k views

Can I safely run 595 watts of lights with a 600 watt dimmer switch?

I have 7 85-watt lights (a total of 595 watts) that I want to control using a 600-watt dimmer switch. Is that too close to be safe? What if I remove one of the lights?
8
votes
3answers
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 ...
8
votes
6answers
71k views

How do I stop a dimmer switch from humming?

I installed a dimmer switch in my washroom and it's making a buzzing noise. The more I increase resistance/rotate the dimmer clockwise, the louder it gets. The humming seems to be coming from the ...
7
votes
2answers
3k views

Changing Out a "Vintage" Dimmer Switch

First off ---- I am by no means an electrician. That said, I have a dimmer switch that needs to go..and be replaced by a new one. However, upon searching the internet and reading the instructions ...
7
votes
4answers
79k views

Why are my some of my LED lights flickering?

Something is causing some of my LED lights to flicker in three locations. Here are two examples: https://www.youtube.com/watch?v=4J-g2z_YtYM https://www.youtube.com/watch?v=KlbPdvkZ-BU There are a ...
7
votes
3answers
34k views

Can I dim LED lights when there are two different switches for the same fixture?

I would like to place dimmers in two different rooms that are sometimes a bit over lit. Is that possible when both areas have two switches for the recessed lighting? Do I need to replace both switches ...
6
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4answers
2k views

Techniques to wrap the innards of electrical switches and outlets with electrical tape?

In the comments section of this question, MacGuyver's distant cousin MacGuffin recommended wrapping the innards of electrical switches and outlets with electrical tape to avoid any accidental shorts. ...
5
votes
1answer
577 views

Can I connect the neutral wire ends via a single switch terminal (without a pigtail)?

I installed a smart dimmer switch that requires a neutral wire. It was in the junction box with the two ends wire-capped together. My switch didn't come with pigtail wires and I didn't have any extra ...
5
votes
2answers
530 views

Miswired 3-Way Dimmer - Contractor used 14/2 in Traveler. How bad is it?

We just had our kitchen remodeled and the contractor moved one dimmer switch in a 3-way circuit. Today, when I went to take a look at the moved outlet, I saw a few things that set off some alarms: ...
5
votes
1answer
415 views

Is it okay for an electrical switch to get warm?

I installed a FEIT Electric dimmer switch on a circuit that controls 2 overhead lights. I noticed that, even when not using the dimmer, the toggle portion of the switch is warm to the touch. Is this ...
5
votes
1answer
8k views

Could I safely use a dimmer switch on an air filter fan?

I bought a small HEPA air filter fan that was advertised as being a quiet model. But it's not quiet enough for me. I bought another "quiet" fan, but the new one is also too loud for my liking. Could ...
4
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5answers
9k views

Incorrect voltage at light sockets

Light bulbs on our kitchen lighting circuit need frequent replacing (lasting only a few months.) All other circuits in the house behave normally. There are three switch legs on this circuit: 6 ...
4
votes
2answers
3k views

How can I wire 3 Lutron Caseta dimmer switches in bathroom?

I went to install 3 caseta luton dimmer switches in my bathroom, and found that I don’t understand the existing wiring which has a bank of 4 switches. There are two dimmers and two on/off switches. ...
4
votes
1answer
3k views

Dimmer switches have no ground wire

I went to replace two kitchen dimmer switches with new toggle dimmers (the old dimmers work, this is only cosmetic). When I removed the face plate, I found the existing switches did not have a ground ...
4
votes
2answers
4k views

Dimmer switch not turning on light until at 50%?

I recently had a professional electrician install a ceiling fan with a light fixture. The fan and light are controlled from a combo switch with two knobs - one is a dimmer switch for the light, and ...
4
votes
1answer
7k views

Does it matter which wire goes where on single pole dimmer?

I’m updating the switches throughout my house. I have an old rotary style single-pole dimmer controlling the just-as-old chandelier in my dining room. This dimmer shares a double-gang box with a 3-way ...
4
votes
1answer
74 views

Installed a dimmer and now it's controlling everything

I have a bathroom switch that contains 4 sets of wires. From L to R it's: Exhaust fan, Power in, Hall lights, Bathroom light. I tried installing a dimmer just to control the bathroom light, but ...
4
votes
2answers
8k views

Bathroom in-wall exhaust fan with dimmer?

In searching this SE, I see many questions discussing traditional ceiling fans and dimmer switches. This question revolves around bathroom in-wall exhaust fans and dimmer switches. Is it safe to ...
4
votes
3answers
3k views

Remove a light switch to an outlet - knob and tube

I have an outlet with a light switch that currently controls it. What I would like to do is remove the switch so the outlet is always hot. I considered just removing the switch and connecting the ...
3
votes
3answers
1k views

How to identify the wires on the dimmer to convert it to Conventional on/off switch

I have a dimmer switch that I need to convert to a conventional on/off switch. I have checked this link for guidance already: How do I replace this dimmer switch to a conventional switch? It seems ...
3
votes
2answers
962 views

Why are ground wires sometimes not insulated?

I recently replaced a single AC dimmer light switch that was one of two light switches in a larger box. The ground wire leading to the switch was raw copper without any insulation. After replacing ...
3
votes
1answer
618 views

Electrician connected LED dimmer to halogen bulbs, worried about safety

An electrician replaced a rotary dimmer with another one that is rated for LED GU10 bulbs. The six existing halogen bulbs connected to the dimmer weren't replaced however. The electrician said that ...
3
votes
4answers
3k views

How to reduce brightness of LED spotlight permanently without dimmer?

Some of my LED GU10s (dimmable) produce too much of light and I'd like to reduce it. I'd like to use on/off switch on those GU10s with permanently reduced light. How it could be done and what kind of ...
3
votes
2answers
1k views

The existing switch box is too narrow for my switch

I am replacing a dimmer with an LED compatible dimmer. I have two problems. 1) I can't find an LED dimmer narrow enough. The Lutron dimmer that I bought is 1 3/4" wide. The box is a little less than ...
3
votes
2answers
367 views

Wiring a switch and a dimmer

I have a box with a switch and a dimmer side by side. Last year I replaced them with smart switch/dimmer and had no problem until the dimmer stopped working. I am replacing the dimmer, but foolishly ...
3
votes
2answers
128 views

Mysterious ground wire

So I’m trying to replace my old light switches with some nice new dimmers but I have a problem. As you can see in the picture, all the ground wires run up and out of the box to an unknown location. ...
3
votes
4answers
3k views

Why does my LED light flicker when turning it on using a dimmer switch?

I replaced a flushmont light fixure with a new dimmable LED Flushmount. I also replaced the old switch (see images below) with a dimmer switch. When I turn the LED on there is a flicker while it is ...
3
votes
2answers
675 views

Is there a code-compliant way to label a wire where the conductors are not wired in the expected way?

This might be an X/Y problem, so if there is a better solution, I'm all ears. I have a 3-gang electrical box in my basement that is already overcrowded. It has The wire for the three-way light in the ...
3
votes
2answers
1k views

3 way switch issue

I am trying to figure out how to install a 3-way switch. Unfortunately, I did not took any pictures of the previous 3-way switch installment, I thought this would be easy but after I bought the new ...
3
votes
2answers
69k views

Why does my one-way switch have 4 wires?

My bedroom light is controlled by only one switch (as far as I'm aware of...), so I assumed my switch would only have 3 wires (current in, current out, ground). However I opened my switch and I saw 4 ...
3
votes
2answers
1k views

What type of bulbs dim to lowest setting?

I've got a Lutron "Plug-in lamp dimmer", Model PD-3PCL-WH, and tried several LED bulbs with it. They all said "fully dimmable" on the packaging. It works, however seems like at most it dims to about ...
3
votes
1answer
268 views

Poor LED dimming performance

I recently bought this LED dimmer to drive these LED bulbs on my recessed lights. The fixtures have a built in transformer that drops the voltage to 12v, but I'm bot sure if they are MLV or ELV ...
3
votes
1answer
3k views

How to wire a 3-way dimmer switch in box with three cables

I was thinking I would replace one of our dumb switches with an Eve smart switch. I opened it up to make sure it had a neutral wire, but it was wired so poorly that as I pulled on the old switch, ...
3
votes
2answers
326 views

Trying to identify these wires on a switch

I think the black wires with the white and blue caps are the hot ones, and maybe the brown wire is ground or neutral? I'm trying to replace it with whats in the second image but not sure what the SW1 ...
3
votes
3answers
4k views

Two lights on a 3-Way Circuit with Separate Dimmers

The Background: I have one room that's both Kitchen and Dining. There are two lights, one for the dining room table, and the other is for the stove / sink area. What I'd like to do is: Be able to ...
3
votes
1answer
2k views

Dimmer switch is buzzing at one location but not at another

I installed a dimmer switch in my bedroom and got buzzing from the switch and from the incandescent light/fan on the ceiling that it was controlling. I took that same dimmer switch and installed it ...
3
votes
1answer
2k views

Dimmer switch gets very warm - almost hot

I recently had a Z-wave dimmer switch installed. It is working fine and controls the recessed lighting in my family room. The lights are six 65-watt BR40 bulbs. When the cover was off the switch (we ...
3
votes
2answers
24k views

Why are my LED bulbs flashing?

I recently replaced all eight bulbs on my chandeleir with dimmable led light bulbs. They work fine when on, but at approximately half power (dimmer turned half way through), the bulbs start flashing (...
3
votes
3answers
5k views

When installing a three way dimmer switch, does it matter which switch is the dimmer?

My grandmother called me the other day to troubleshoot from half way accross the country. She installed a three way dimmer switch in her dinning room at the location most used. It turns the light on ...
3
votes
1answer
722 views

Lutron Maestro CL Extreme Delay

I've had nothing but success with using Maestro dimmers on both LED and incandescent lighting for years, but recently picked up a new dimmer (MACL-153M-WH) and a pair of G7 Elko LEDs (30W total) and ...
3
votes
1answer
13k views

Can I put dimmable LED bulbs in a ceiling fan fixture and wire it to a dimmer switch marked LED compatible?

Would there be any problems with putting dimmable LED bulbs into a ceiling fan fixture that holds three bulbs and wiring it to a dimmer switch marked LED compatible? The fan itself will be on just the ...
3
votes
2answers
6k views

How can I control two ceiling fans and lights with one single pole switch?

I have two ceiling fans with two aftermarket light kits installed, all controlled from one single pole switch. So when switch is flipped, both fans and lights turn on or off at the same time. Only way ...
3
votes
1answer
104 views

TWO ORIGINAL SWITCHES - ONE three-way and one single cant figure out wiring for SAFE UPGRADE

(I'll attach photos and a diagram) I read through other posts on switch upgrades and learned a lot - thank you! My switch upgrade seems similar, but slightly unique and I can't figure out correct ...
3
votes
2answers
1k views

How can I use a Z-wave switch as a 3-way with no neutral?

I have two lights controlled by two light switches in a 3 way switch loop configuration with no neutral. I would like to replace either one (if I can get away with it) or both of the switches with a ...
2
votes
5answers
986 views

Why would a new switch come with aluminum wires?

I just bought a dimmer switch from Lowe's, and it came with aluminum connection wires (I believe). Our house wiring is copper. I understand that connecting aluminum to copper isn't recommended, and ...
2
votes
2answers
518 views

Faulty dimmer lights / switch

My patio lights are on a dimmer switch. Recently when I press the switch the lights go on and then switch off immediately and stay off. I can press the switch on and off several times and nothing ...

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