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Questions tagged [dimmer-switch]

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

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32 views

Installed dimmer switch caused another switch to stop working

I installed a dimmer in my bedroom today and I just realised that the dimmer in my mom's room and in the corridor is not working anymore... Followed standard procedure : Breaker off, changed the old ...
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2answers
1k 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 ...
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2answers
56 views

5 Wires in Light Switch

I have 5 wires in the back of the light switch. It looks like there are 2 ground wires (copper, no coating) one from the breaker and one to the light. They go into different holes and then are coiled ...
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13 views

3-way Dimmer - Lights Flicker Off When Turned On

I have corridor lights (12 of them) linked up to two 3-way dimmer's. The lights were dimmable from both sides and all worked fine. After replacing some connections in the bathroom (separate to the ...
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42 views

Dim only certain lightbulbs on a circuit?

The builder built my house with multiple outdoor lights on a single circuit. Most of the lights are non-dimmable LED wall fixtures, but 2 of them are dimmable 6" LED baffles under an overhang. He ...
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1answer
477 views

Help with 2 Dimmer Switches and bad wiring

Two dimmers in one "box", each going to a separate room. One set of lights started to flicker, so I figured I needed to replace the switch. I've done dimmers before. But when I opened the box, whoever ...
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1answer
42 views

Color adjusting LED ceiling light intermittent issues

I recently installed CE color changing (5 temperature settings) LED all-in-one fixtures in my bedrooms and have been having an odd issue. I wired four fixtures with 12/2 Romex in parallel out of a ...
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1answer
44 views

Change dimmer switch to regular

I have a dimmer switch, need to change to regular for a ceiling fan. From the picture, I think the black wire is my "neutral," and the green is obviously ground. The red wire to the upper right is ...
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1answer
41 views

How can I tell if a dimmer switch is LED compatible?

I have recently put some smart LED bulbs into my ceiling fan (Lifx if the brand matters) and there is a bad humming noise. Previously there was some humming in at least one of the LED bulbs (they ...
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1answer
45 views

Ceiling fan + dimmable lights + old wiring?

I want to have my cake and eat it too. Is there any way to accomplish this? I have an old ceiling light circuit. There is a switch going to a (broken) fan on the ceiling, with lights in it. Since the ...
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1answer
36 views

Do all dimmers reduce max brightness of LED lamps?

TL;DR - do all dimmers reduce maximum brightness of LED lamps? So I had a recently bought a dimmer switch (Lutron Diva DVCL-153P) for an LED light, and I immediately noticed that the light was dimmer ...
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1answer
122 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 ...
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2answers
193 views

Can someone explain this wiring configuration to me?

See my previous question for more detail on my household's bizarre wiring. Three of my bedrooms have dimmer switches connected to outlets and ceiling fans, which is electrically unsafe and just ...
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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 ...
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0answers
37 views

two dimmer switches in one box operating two ceiling fans and lights…how to wire

In my current box I have two single pole switches. one turns on the lights for two ceiling fans. the other switch turns on the fans for both ceiling fans. I want to put dimmers on both fans and ...
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3answers
132 views

Using a dimmer on a light plugged in to a receptacle [duplicate]

My home is 42 years old. The kitchen lighting consists of 2 48" fluorescent shop lights each plugged into a normal 110v receptable. It uses a standard, 1 way, on/off switch. I want to convert from ...
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2answers
29 views

Replace timer dimmer switch with dimmer switch

I am replacing a lutron dimmer timer switch with just dimmer switch. The problem is the black wire that goes inside the current switch’s body. The new switch doesn’t have the need for this black wire ...
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40 views

Flickering started: All 4 LED bulbs on dimmer switch flicker in unison

All 4 LED Recessed lights on dimmer switch #1 just started flickering in sync (sometimes) starting 2 days ago. 4 years with no problem 4 other LED's on a DIFFERENT dimmer switch #2 (but same circuit) ...
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34 views

Three way fan control, single switch

I have replaced a large chandelier in a common area with a ceiling fan, it already had the appropriate support box, because of its size. However it is controlled by two three way switches. Is there a ...
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2answers
149 views

Why do some LED lights go dim while others go out completely?

When dimming LED lights with an LED dimmer, why do the LED lights at the end of a string of lights go off when LED lights at the beginning of a string of lights go dim but stay lit? This application ...
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1answer
151 views

What to do about a switch without neutral, in MA, USA? [duplicate]

I'm upgrading switches in my older (1978) home, putting smart switches in. I have found many "interesting" wiring situations, some I have remedied, some I have just left as-is. Recently I opened a ...
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3answers
79 views

Is it safe to use this dimmer on LED bulbs?

I have a question about dimmer switches for LED flood lights. My kitchen has six floodlights on a Lutron toggler dimmer switch, model AY-603P. http://www.lutron.com/en-US/pages/SupportCenter/support....
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2answers
84 views

Is there a dimmer light switch with secondary constant 120V output?

I have a vent fan and an overhead light in my bathroom. They are currently tied to one standard light switch. When that light switch is in the "on" position, the vent fan and light are both powered on....
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4answers
70 views

Control individual bulbs in a 6-can dimmer series

This is a complicated question, and maybe there is no way to do it, BUT... I currently have a 6-can series dimmer in my basement (home theater) aligned in 3 pairs. I would like to be able to control ...
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2answers
70 views

Removing a light switch cuts power to my entire room. Breaker not tripped. Smart Switch Install

I have installed smart switches before, but I moved into a new apartment recently. I have never had a problem before. I removed my old light switch and installed a new smart wifi light switch, and I ...
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1answer
28 views

Dimmer rotation span wider than the light intensity span

I had a guy install a dimmer for my kitchen's spotlight. It works as supposed to except for one small detail. The spots are totally off not at the end of the rotation of the controller but at about 40%...
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32 views

Installing Levitron Digital Dimmer with Matching Remote

I have a Levitron Digital Dimmer (DDL06-1LZ) and matching remote (DD00R-DLZ). Dimmer is at bottom of the stairs and the remote at the top. Wire it all according to the diagram and dimmer doesn't ...
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1answer
45 views

Installing a dimmer only where a light and fan switches exist

The left switch in the picture controls the light, while the right switch controls the fan. I'm looking to install a ge smart dimmer switch, while disconnecting the fan switch, but still leaving it ...
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1answer
18 views

ELV fixture + Maestro ELV dimmer does not dim, it simply switches

I just installed a Maestro ELV dimmer connected to a LED ELV-compatible fixture (WAC lighting). The fixture does not dim however, it is 100% on at all dimmer settings and shuts off when the dimmer ...
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1answer
21 views

Can I tell whether a LED driver/bulbs are dimmable without damaging them?

As mentioned in the answer to this question: LED bulbs and LED dimmer we can't trust a LED driver / LEDs to be dimmable if it doesn't say so explicitly. However, only some companies offer explicitly ...
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2answers
45 views

Wiring a 3 way Leviton VPT24-1PZ Vizia 24-Hour Programmable Light Switch

I'm trying to install a Leviton VPT24-1PZ Vizia 24-Hour Programmable light switch replacing an existing 3 way switch. the electrical box for this switch only has a black wire, white wire, red wire ...
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1answer
60 views

Circuit is broken when switch is screwed into box, but not outside of box

1954 House with original (cloth over rubber) wiring on the main floor. Replacing fan and light with simple overhead light fixture and toggle switch with a dimmer switch. Box has an incoming conduit ...
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83 views

Lutron Fan & Light dimmer switch wiring

I have a hunter Fan/Light I am installing. I purchased the pictured Lutron switch to control the fan/light. My power source comes into the switch box and is wired as follows: Power source (Black) ...
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4answers
123 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 ...
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2answers
23 views

installing led bulb in a 2 bulb setup

I have a two bulb set up with a dimmer switch. Both of these were non led bulbs. So i went on and replaced the bulbs with led. Now when i turn the switch off, one of the bulbs stays on with the ...
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0answers
37 views

Is there an LED-compatible dimmer switch that can work in series with a second dimmer?

I just installed 3 LED shop lights in my workshop (ok they're actually meant as bathroom lights, but the price was right). They are wired in parallel, with a master switch in front of everything (in ...
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0answers
26 views

How do I diagnose light dimmers that have become erratic after installation?

I used to have light dimmers in my house that worked just fine; but after an electrical panel upgrade they became erratic and/or noisy. All the dimmers are powering LEDs which claim to be dimmable ...
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1answer
95 views

How should I connect a replacement dimmer switch?

I'm just trying to replace a broken dimmer switch, but can't make heads or tails out of the directions. Please see the photo of the partially attached NEW dimmer. Only the ground is connected so far. ...
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1answer
63 views

3way wiring with timer AND a dimmer

I'm using an intermatic ST01 to feed the dimmer, since I don't have a neutral in the far box, and I'm told not to feed dimmed input to a timer. From there is where I'm having a problem, using a ...
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2answers
191 views

Light switch shorted; can't figure out why

I swapped out a dimmer switch for another one. This was fairly standard, only two wires to connect, no ground (old condo). Turned the breaker back on, tried things out, the on/off switch worked, the ...
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2answers
613 views

Installing a smart dimmer switch into 3 gang box

I have installed dimmers in a single box and a gang box with 2 switches but never a box with 3 switches. And there's some confusion, so hopefully someone can help. I am installing a new smart dimmer ...
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1answer
57 views

How to repair a wire in a light switch box

In attempting to install a dimmer switch, I managed to snap a wire in my light switch, by not realising when I was tightening it it was pushing on the wire. What would be the best approach to fixing ...
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2answers
153 views

Dimmer stopped working but light switched on after maybe short-circuiting ceiling light

I pulled out the pendant light bulb that was hanging at the center of this metal framed Turkish style lamp. The light bulb touched the metal frame and there was a sudden explosive sound, burning smell ...
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1answer
78 views

Can I replace this dimmer?

I have a knob dimmer that says on the metal plate "For permanently installed incandescent fixtures only" on it. I would like to replace that with a rocker style dimmer that accepts LEDs. The wording ...
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1answer
44 views

Dimmer dims the lights about once a second

I have a dimmer (Richmond/Zano GRID500) that, when turned up to full brightness, dims the lights on and off at a rate of about 1 Hz. Turning the brightness down just a bit makes the blinking stop. ...
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1answer
180 views

Safe to mix wire gauges when installing dimmer switch?

I've purchased a Lutron dimmer switch (DVWCL-153PH-WH) to install for ceiling mounted LED lighting. The wires for the current switch are 12 gauge with a 20A circuit breaker while the dimmer switch ...
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1answer
488 views

Two dimmers (for two separate lights) in one junction box where there's only White, Black and Red coming out of the wall

So, 40 yr old townhouse, there are two ceiling lights in the "rec room" area of the bottom floor/basement. Two dimmer dials/switches (push in for on or off, twist for dimmer function) in one ...
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2answers
668 views

Dimmer wiring for 3 wire single pole

[Edited from original version apparently read into a cell phone's voice reco.] I am trying to wire a dimmer switch into an existing light switch that was in the box before. It had three wires ...
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3answers
43 views

Light Dimmer Causes Internet Drop

I've bought a standard light dimmer and a dimmable led lamp. Dimming works fine. However, when I dim the lights my ADSL connection drops. The DSL light on my modem turns off and I can't connect back ...
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1answer
28 views

In a one-way dimmer, can C and L1 terminals be swapped?

In a one-way dimmer switch, does it matter which way round the C and L1 terminals are connected (both electrically and in terms of UK wiring regs)? For context, I have a dimmer that's wired the ...