Questions tagged [dimmer-switch]

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

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3 way dimmer in 4 way circuit

I have a Legrand (Pass & Seymour H703P) dimmer that I installed in a 4 way circuit. This dimmer has its common connected to the line so it's 1st in the circuit line and not in the middle or end. ...
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1answer
2k views

Can I protect a dimmer switch circuit with a GFCI outlet?

I'm installing some line-level-dimmable LED undercabinet lighting in my kitchen. I'd like to protect it with one of the existing GFCI outlets in the area. My sequence would be GFCI > dimmer switch > ...
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1answer
1k views

which wires to connect when installing a dimmer switch?

I have a new dimmer switch that to replace an old standard light switch. The old switch has 4 cables coming into it as in the picture. and the new one purchased from amazon is Lutron GL-600H-DK. It ...
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2answers
7k views

Adding a new dimmer switch to old wiring?

How do I wire a dimmer switch to replace my existing old switch? Dimmer has with 1 green wire and 2 black wires . My existing light switch has 1 black and 1 white.
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1answer
115 views

Is this dimmer switch wiring correct?

I live in a rented flat filled with dimmer switches. One day we knocked a rack of halogen lights connected to a dimmer and blew a fuse. I reset the fuse but the circuit with the rack of halogen lights ...
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3answers
5k views

Is it safe to mix LEDs and incandescents in a chandelier?

I've been having an issue for a while now where my chandelier light fixture installed with six Cree 60W LED replacement bulbs flickers when I raise my traditional dimmer to max brightness. As I ...
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1answer
462 views

Replacing light switch with dimmer switch… white wire?

On a three gang switch, I'm replacing a single pole light switch with an electronic dimmer and a second single pole light switch with a WeMo switch. The third switch is getting replaced with a ...
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1answer
2k views

Wiring a Z-Wave 3-way auxiliary with neutral from other switch? (w/ diagrams!)

I found my question difficult to phrase, so I mocked the wiring diagram up in Photoshop. I have a 3-way switch setup like so: I am going to upgrade this to a Z-Wave enabled pair of 3-way switches ...
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1answer
2k views

Dimmers don't turn on at low setting

I just had these new dimmable LED lights installed. When I turn them on at the lowest setting, they don't turn on at all. I have to bring it up and back down again to get it to the low setting. This ...
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1answer
57 views

Fan switch compatibility

How do I determine if I need to use a manufacturer's fan switch or if I can use an off-the-shelf fan switch? E.g. I would like to buy an Emerson Loft fan and Emerson Curva fan and control them with ...
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1answer
3k views

When I turn the light on/off on one circuit, it makes the light “blink” off/on on another circuit

I apologize for the long post, but I wanted to provide as much info as possible. Recently I started a DIY home electrical project to replace a lot of light fixtures, the light switches, and the ...
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1answer
816 views

How do I convert from 3-way switches to dimmers?

I'm hoping you can provide me with some guidance on where I'm going wrong with my wiring of my new dimmer switches that I'm using to replace a pair of three-way switches. I've gotten everything wired ...
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1answer
1k views

Dimmer switches & LED lights: Lights keep turning up to max and won't stay dim

I'm a tenant in an apartment and we're having strange lighting issues. We have a dimmable light switch panel in our lounge with 2 controls, controlling 4 LED spotlights each. The dimmers make a ...
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1answer
163 views

Should I pigtail from the bundle of neutrals in order to get the needed neutral connection?

My new universal dimmer (legrand adorne) has no wires of its own. It requires a neutral. My neutral wires are bundled together and capped in the box. Should I pigtail from that bundle in order to ...
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3answers
839 views

Can I use a rheostat as a potentiometer?

Is it possible to safely use a rheostat as a potentiometer to control an incandescent ceiling light? I have replaced a ceiling fan with a light fixture and would like to use the existing rheostat as a ...
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0answers
446 views

Wiring for Dimmable Security (motion detector) Floods

I'd like my 2 sets of outdoor security lights to be dimmable (in all settings) from a single switch. The electrician said he ran one (always on) power line for the motion detectors and another line ...
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2answers
35k 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 ...
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2answers
184 views

Function of a phase angle adjustment in a light dimmer

I'm setting up a light dimmer an have found a adjustable part for setting the "phase angle of light bulbs". That is a literal translation from German. You can see the adjuster in the picture. My ...
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4answers
7k views

Lights turn off when dimmer switch is at 100%

I have various dimmer switches around the house. Some of them have an issue that when the lights are at their brightest the lights switch off. When switching the lights on you have to then hold it ...
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1answer
592 views

Install one dimmer switch which is one of two regular switches

We're purchasing (5) dimmable LED's for the kitchen and I'm now researching the dimmable switches. The lights are controlled by two switches on opposite sides of the room. Either one can turn off or ...
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0answers
826 views

Controlling multiple banks of LED bulbs with one dimmer switch

Just had the contractor install some recessed LED lighting in some of the rooms of the house. Due to building codes we can't have one location with enough switches to control the lights as we have ...
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1answer
215 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 ...
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1answer
11k views

How do wire this 2-gang dimmer switch?

I'm trying to fit a dimmer switch in my living room. I have two pendent lights controlled by a single wall socket with two switches one for each light. My property is a new build and in the UK. So ...
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1answer
396 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 ...
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1answer
861 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 ...
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1answer
10k 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 ...
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1answer
528 views

Floodlight randomly, dimly lights even when lightswitch is off

This problem baffles me completely. In one of our bedrooms, we have two floodlights connected to a one-way Z-wave dimmer switch. Both floodlights are Cree BR30s. When the light switch is off, one ...
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2answers
173 views

Is this a compliant way to control three circuits with two switches?

I'm planning to replace two dimmer switches -- but I found the following clever wiring when opening up the junction box. Three circuits where the neutral lines are spliced together, one live line ...
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1answer
67 views

Can I replace this switch with a dimmer?

I recently moved into a new rental. It is older construction but was completely remodeled. I did some some older wiring in the basement but the functional wiring seems to be new and modern code/...
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3answers
877 views

Turn Lights On/Off Without Having to Hit 3 Switches in One Room

I just moved into a new place and I'm having an interesting lighting problem in one of my rooms. I've looked at a few things on the internet, but my lack of experience in this matter makes me feel ...
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1answer
66 views

Grouding on a incandescent 120 V dimmer

The light dimmer of my chandelier broke recently so I went buy a new one (incandescent 120 V 600W). The one that broke was fairly old (sticker on the dimmer mentions 1987). Since I'm pretty novice ...
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1answer
672 views

Install Dimmer Switch in Old House

My house is circa 1910 and I dont really know how old the wiring is in it. I am trying to swap a 3 way light switch with a 3 way dimmer (Lutron CL Dimmer). I killed the power and pulled the switch ...
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2answers
2k views

Repairing dimmer switch

I have an IKEA lamp with dimmer switch which took a knock and immediately started outputting full brightness. I've read a little about how dimmer switches work and that this is likely caused by the ...
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2answers
4k 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 ...
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0answers
2k views

Installing a dimmer to control multiple lights

I recently asked a question about installing a dimmer and got a great reply. Now I want to install another dimmer, but this one might be tricky. In our hallway there are three lights that are all ...
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2answers
2k views

Is my CL dimmer compatible with my light switch fixture?

Bought a Lutron CL dimmer after googling around and seeing how easy it is to install a dimmer, but when I got home and took a look at my light switch I'm not sure its compatible? The dimmer has 4 ...
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2answers
14k 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 (...
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2answers
9k views

Why do LED lights with a dimmer stay dim and won't go bright again?

I have a chandelier with five lamps. I brought an LED compatible dimmer and changed out the switch for the dimmer. I brought five dimable LED bulbs. The bulbs and dimmer worked for a little while, but ...
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2answers
3k views

How should I attach the grounding conductor for a replacement switch?

I'm attempting to replace an old Leviton light switch with a new Lutron dimmer switch that connects to our house's Wink system. The old switch had 3 black wires attached to the light switch and no ...
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6answers
51k 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 ...
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1answer
9k views

Is it OK to leave a dimmer switch on low constantly (LED light)

I have a new LED ceiling light in our hall, and installed a compatible dimmer switch (both Leviton). The dimmer has a slider plus a switch, and when the switch is on, but the slider is all the way ...
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1answer
980 views

Replace “powered” dimmer switch for old (1950s) house

We have an old dimmer switch, single pole, the type with an indicator light internally. It has two black wires, and the green wire is cut off. The plastic box it's connected to has only two wires, ...
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1answer
1k views

Why won't my Levitron Z-Wave dimmer switch turn the lights off?

Recently purchased and installed a Z-Wave Dimmer switch which seemed to be an easy installation. However, the only way I can get the light to turn off is to enable the air gap on the switch. If the ...
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2answers
628 views

Why does one of two lights stay on when they share a neutral?

I have one source of power (1 hot wire) for 2 loads (living room lights and breakfast nook lights) I am replacing the dimmers with Insteon dimmers. The previous switches didn't use the neutrals, but ...
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1answer
2k views

Can a light with a built in motion sensor, be used with dimmer switch?

My front lights are bright and have built in motion sensors. I would like the capability to dim these lights. So my question is, can I use a dimmer switch on these lights (with built in motion ...
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8answers
8k 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?
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1answer
722 views

How can I wire an Insteon switch in this situation?

I've been installing Insteon switches around the house, and I've run into a bit of an issue. In our bedroom, we have a switch that controls the fan lights and recessed lights as well as single ...
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1answer
1k views

Replace a dimmer switch with a regular light switch

I removed a dimmer switch controlling 5 canister lights in my kitchen, and saw three black wires coming out of the wall box. Two of the black wires were connected to one of two black wires on the ...
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2answers
1k views

What could be causing there to be no power at my ceiling fixture?

I installed a replacement chandelier, heard a pop which tripped breaker, and reset the breaker, but the chandelier would not work. That breaker is shared by can lighting (which has its own dimmer ...
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2answers
400 views

Downgrading from a dimmer to a switch

I've seen posts about going from a switch to a dimmer, but not the other way around. I originally thought I could read those and do the opposite, but it seems that there are many ways houses can be ...