Questions tagged [dimmer-switch]

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

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281 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
160 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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212 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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72 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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127 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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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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36 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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48 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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23 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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24 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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121 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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64 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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273 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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207 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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24 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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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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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
102 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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101 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
297 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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1k 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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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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314 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
81 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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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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258 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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875 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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1k 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
51 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
31 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 ...
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61 views

Kitchen dimmer dims lights in adjacent room, but not always

I have a weird wiring fault. The kitchen and the dining room each have dimmer switches that work fine individually. However, if the dining room dimmer is on and within a certain range of positions (...
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142 views

How to reset the breaker on this smart dimmer light switch (switched receptacle)?

My condo came with these dimmer switches. You push once on up or down to fade the lights in or out fully, or press and hold to fade the lights slowly, releasing to set the light amount. I don't know ...
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3k views

Light Switch with 2 black wires and one red

I'm trying to replace a double switch (controls fan and light separately) with a single pole dimmer for a chandelier. It seems there is no ground, but there are 2 red and just 1 black running to the ...
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2answers
4k views

Installing LED compatible dimmer switch (wiring question)

I bought some new Lutron dimmer switches which are compatible with the LED bulbs I have and am trying to figure out the wiring. Here's a diagram of the existing wiring (its a 2 gang box and these are ...
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357 views

3-Way Switch won't turn on lights if dimmer is set to low

I just added 5 dimmable recessed lights to my living room. I'm certain it's powered correctly. Incoming power hits the 3-way dimmer switch. Both traveler wires head to the other 3 way switch (non-...
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1answer
76 views

Could a wall dimmer switch be connected as part of the power cord for a table lamp (UK

I'm not very experienced with wiring/electrics and wondering if I could use a wall dimmer switch to control a table lamp? I'm using UK 3 core wiring and 40W bulb. I would like to install the dimmer ...
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2answers
1k views

What to do with dimmer ground wire?

I am replacing an old dimmer switch with no ground wire with a dimmer switch that has a ground wire. The metal box in my wall is grounded, but there is no ground screw or anywhere else to attach the ...
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62 views

LED strip forgets last setting when turned off

In the staircase at my home an electrician installed a LED strip in the handle. I can dim the lights to desired intensity using a springloaded switch and a timer turns on the light in the morning and ...
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59 views

Replacing 12V halogen spotlights with MR16 dimmable LEDs in my lounge

I am trying to replace 12V MR16 halogen spotlights in the ceiling with dimmable MR16 LEDs. The existing halogens do not have a dimmer driver, and each has its own transformer (I'm 90% sure of this). I ...
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1answer
766 views

LED bulbs will not turn on

I am having an odd problem with a light fixture. The fixture has three sockets and is wired to a dimmer. I replaced the bulbs with Philips LED bulbs that were dimmable. However, when I turn the dimmer ...
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1k views

Ceiling fan on one circuit tripping GFCI on separate circuit

Installed a ceiling fan dimmer switch in a bedroom that is on an arc fault circuit. When pushing the dimmer switch up or down on the ceiling fan, it then trips the GFCI outlet on the bathroom circuit....
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40 views

Using one dimmer to control 2 sets of lights with each an On/Off Switch

I want to install some LED lights in my RV. I have 2 sets of 4 LEDs, connected on my 12V circuit. One set is for the front (kitchen area), one set in the back (living area). When all the lights are ...
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69 views

Needing help replacing a regular switch to a ceiling fan with a dimmer switch

I'm trying to install a Leviton #6674 slide dimmer with switch replacing a standard switch. After I pulled the switch plate off I found that there is 1 black, 1 white and 1 red to the old switch as in ...
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372 views

Why doesn't my dimmer switch work after installing LED bulbs in my ceiling light?

I have three pendants and a 5 bulb fixture over my table it has Antique Edison bulbs in the fixture with yellow tint I want brighter bulbs, I purchased LED equivalent bulbs and when I put two or more ...
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56 views

Choosing correct dimmer for halogen bulbs

Apartment I moved into has a light with 5 halogen bulbs - rated 20W, 12V each. I'd like to replace the current on/off switch for all of them, with a dimmer, but concerned there might be issues to be ...
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101 views

Dimmer switch on 3-way circuit only working 90% of the time, is it a bad switch or something else?

I installed a dimmer switch on a 3-way circuit that was working correctly. The other switch is a standard on-off switch. The fixtures they control are halogen light fixtures. About 10% of the time, ...
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430 views

Dimmer switch only dims one of two lights?

I have two ceiling lights in my living room controlled by a single switch. I wanted to install a dimmer switch to control/dim both of them. I installed the switch but the dimmer only dims one of the ...
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59 views

Why are the lights on my dimmed three-way circuit dimmer than normal?

I have a 3 way switch and a 3 way dimmer switch to operate two recessed fixtures, which worked fine for years. Now, both spots are dim. Doesn't matter if I use the switch with dimmer or 3 way switch ...
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2answers
124 views

Help with smart dimmer

I have 12 recessed lights separated into 2 sections, of 6 each currently connected to 2 dimmers. I want to replace the current dimmers with smart dimmers by Leviton. Here are the instructions and ...
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4answers
4k views

LED lamp keeps glowing when dimmer is turned off (Has been asked before)

(I know this question has been asked before (here), but I followed the advice recommended by the users in that thread to help remedy the problem, but the lights still glow.) I recently bought ...