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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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27 views

Can I control multiple lights from both a standard switch and a dimmer?

I would like the left switch to be standard and control all six lights, and the right switch to be a dimmer and also control all six lights. Is this possible?
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4answers
85 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
21 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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33 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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23 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
75 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
43 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
69 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
113 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
55 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
41 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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29 views

Want to change from dimmer to regular switch

I want to switch this out for a regular rocker switch as the back of the other dimmer (this is on a 3 way circuit) says to only use one dimmer. There is one black, white and yellow wire inside the ...
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1answer
74 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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0answers
20 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
139 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
85 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
118 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
41 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
23 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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1answer
42 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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3answers
51 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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1answer
1k 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
521 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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0answers
92 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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0answers
49 views

Changing one dimmer to conventional in a two gang set

I recently bought a Philips hue bulb only to realise it doesn't work with my current setup (dimmer switches). I have 2 dimmer switches in one unit, 1 controls lights around the outside of the room ...
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1answer
37 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
294 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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1answer
54 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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1answer
34 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
79 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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0answers
37 views

light fixture humming when I installed a dimmer

I have 8 single recessed lights with single GU10 dimmable LEDs and one light fixture using 6 exactly same GU10 dimmable LED bulbs, all on the same switch. When I installed a dimmer with proper rating,...
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1answer
555 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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1answer
29 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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0answers
62 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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0answers
42 views

strange chandelier

I have a small chandelier in my dining room with 5 bulb placements. It is controlled with a on/off switch and a small dimmer next to it. Now when I install 5 Ecosmart LED 60w light bulbs (dimmable), 4 ...
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1answer
101 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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1answer
42 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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0answers
67 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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0answers
218 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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1answer
36 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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1answer
108 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
1k 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 ...
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3answers
2k views

Electrical dimmer switches for 4 switch locations?

I have a bank of 6 - LED 18watt (dimmable) bulbs and this bank has 4 switch locations. Is it possible to dim this bank? I don't see any 5 way dimmer switches offered. Thanks.
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1answer
320 views

Replace light switch connected to a power outlet with dimmer - two black wires to one black and red

I have a light switch that is connected to a power outlet. The light switch has 2 block wires, one coming from the wire and one coming from the power outlet. I want to change this to a dimmer and I ...
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3answers
91 views

Can I have dimmable LEDs in a corded lamp?

For a couple of bedside/reading lamps I want to use LEDs, but even the dimmest bulbs I've seen in the shops are about 250lm and still too bright for the purpose. So I've come to consider a dimmer. ...
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1answer
41 views

Using UK switches in Slovakia

I have checked Wikipedia to compare electricity in the UK vs Slovakia, see: Country PlugType PlugStandard Residential voltage Frequency Comments Slovakia C, E STN 34 ...
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1answer
84 views

Two Lutron occupancy dimmers for one light

My setup is as follows. Hot -> occupancy dimmer 1 -> traveler 1 -> light load Hot -> traveler 2 -> occupancy dimmer 2 -> light load It works ok, if they are both triggered at %50 dim the light turns ...
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30 views

Light dims when plugged in, doesn't dim when hard wired to feed

I have a peculiar situation. My LED light is fully dimmable down to 10% per manufacturer spec (this light). To test its function, I hardwired the light to a plug (like this Plug) via a dimmer switch ...
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1answer
54 views

How can I reduce flicker on an ELV chandelier?

I wired up a set of ELV lights in my dining room and used this particular dimmer switch (Lutron MRF2-6ELV-120-WH) at the switch box. The wiring was rather straightforward. No more complicated than ...
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1answer
553 views

How to check if light is “Power Through Fixture”?

This is related to my other question here. I just learned of the "power through fixture" concept and it seems that WeMo dimmer switch isn't compatible with it. I want to believe that what I have in ...