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Richmond 500 grid dimmer switch keeps failing

I have installed a 3 gang grid dimmer, with 12 spots on one switch (grid 750w), 6 on another (500w) and 9 on another (500w). The dimmer with the 9 spots has blown twice. once without warning and then a light bulb exploded and the switch wont work anymore. Any ideas on how to fix without replacing the dimmer for the second time in 3 weeks?

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In addition to an individual rating per dimmer, these dimmers have a total recommended rating based on the size of grid used. Assuming you've got three in a double box - the total combined load is 1000W of tungsten or 700W of LV fittings. It looks to me like your trying to dim too much in a limited space and generating too much heat.

Posted on May 28, 2009

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Also look at what your dimming, if it's gu10 lamps these can downrate your dimmer by as much as 50% in some cases. Check with the manufacturer to be sure.
And the above post is right, you'r way overheating the dimmers.
Look intogetting a remote pack, or for a cheaper option replace lamps with a lower wattage e.g 35w.

Posted on Feb 26, 2010

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Too much load? Disconnect some spots and see what happens.

Posted on Feb 02, 2009

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1 Answer

This dimmer switch was installed in the early 1990's. A 12-3 AWG wire is the power source and the dimmer is 10-3 AWG. Two red wires one black


Oh, look! a THIRD question on the dimmer from William!

Yeah, I was wondering about the 10 gauge wire. It means you have a SERIOUSLY "Big" switch, capable of "dimming" a load the equivilent of a Milk-house Electric Heater.

If you are set on replacing it, just choose one rated 500 or 600 watts in the style you prefer. Believe it or not, the wires on the replacement will likely be 14 gauge, tops.

Personally, I like the ones that have the toggle itself as the dimmer, my second choice has a little "slider" next to the toggle (it keeps a "preset" dim for you). but there are maybe a dozen-plus variations.

If you do replace it, SAVE that puppy - it is very very likely good, (the replacement switch will likely get exactly as warm in use) and would cost a LOT to buy a new one of the same rating. It "might come in handy someday", like when you want to put a dimmer on fifteen 100 watt bulbs out in the garage!

Have fun, and good luck, William!

Jan 22, 2015 | Electrical Supplies

1 Answer

Wiring diagram 2 gang switch


http://waterheatertimer.org/How-to-wire-switches.html#gang

Is the neutral wire inside the gang box, or is the neutral wire in the ceiling box?

Gene

Sep 16, 2014 | Electrical Supplies

1 Answer

Lutron dimmer switch # D1500 1500 120vac Voltage to switch is OK but lights(8 100watts) do not go on.


I can't locate the Lutron D1500 dimmer switch on Lutron web site. Perhaps there is a different number for it.

Anyway, you are attempting to dim a total of 800 watts of light. A standard dimmer switch will not handle this much of a load as they are rated for 600 watts. A 1000 dimmer is the next size up and would be the minimum rating to be used. This means the dimmer would be operating at 80% of capacity and the switch may become warm - but all within acceptable limits.

A dimmer switch rated at 1200 watts or even 1500 watts may be a better choice, as the 800 watt load would present a load that would only be 66% and 53% (respectively) of rated capacity, and would likely run cooler and last a lot longer.

The down side to these higher wattage rated switches is their cost. It is not unusual for the price to double for a 600w vs a 1000w dimmer.

Sometimes, a 1000w dimmer is not sufficient to control a 600w load. This happens when 2 or more dimmer switches are installed in a single location under one wall plate. It is a fairly common arrangement for electricians to install 2, 3 or more "ganged boxes" so that there aren't 2, 3 or more individual switches clustered around a doorway. Even though a two ganged box has twice the area of a one gang box, the issue is about heat dissipation. A box will contain the heat. So the heat is given up from the front of the switch. The metal fins provide more area for cooling. When two or more dimmers are located in a multiple-ganged box, there is too much heat for the space. Two 600 watt dimmers would need to be derated to about 450 watts each (instructions for derating are included with the switch - each manufacturer has their own formulas), and if three 600 watt dimmers were in a single location, they might need to be derated to 300 watts each. So, simply moving to a 1000 watt or 1200 watt dimmer may not get you to the 600 watt level if there are several dimmers that require derating to 50%. Installing dimmers in boxes with standard "toggle" type (non-dimming) switches require no derating as toggle switches do not produce appreciable heat.

Make sure that the lighting load is a type designed for dimming. The popular CFL (compact fluorescent lamps) are not designed for dimming, unless the package specifically states otherwise. Lights that have a filiment but no transformer, ballast, starter, etc. are the only ones suitable for use with a dimmer (again - unless the package / fixture states otherwise). The dimmable types are typically "standard" incandescent, quartz, halogen and tungsten types.

Furthermore, a dimmer switch is not suitable for use as a fan speed control either. There are special switches to provide speed control of fan motors. Use of a dimmer on a motor load is a fire hazard.

I hope this helps & good luck!

Jan 08, 2013 | Lutron Electrical Supplies

1 Answer

2 gang switches


Copy following link for switch wiring illustrations
http://waterheatertimer.org/How-to-wire-switches.html

Dec 12, 2011 | Electrical Supplies

1 Answer

How do i wire a 3 gang switch


Open following links for images of 3-gang and 4-gang single-pole switches.
With the 4 gang, just subtract one of the switches.
http://waterheatertimer.org/images/Single-pole-switches-in-4-g.jpg
http://waterheatertimer.org/images/despard-500.jpg

If you have a 3-way switch, or outlet in the box, then add a comment with more exact information about what wires you are trying to connect, what color wires you have, and what you have tried so far. This will narrow down the possible answers and speed help.

Upvote the help.
And take advantage of fixya expert assistance live.
For a price, expert works with you while you work on circuit or any do-it-yourself project.
Fixya is always less expensive than a service call.

May 28, 2011 | Cooper Industries Cooper Wiring 2158V 3...

1 Answer

Have a thyrocon dimmer, says on the bottom, 0180, also 600 w single gang, 500 w two gang, and 400 w three gang, 120 ac volt, the top that turns the dimmer on and off broke, went to Lowe's and Home Depot,...


http://www.lutron.com/Products/StandAloneControls/Dimmers-Switches/Pages/DimmersSwitches.aspx

Lutron shows widest selection of dimmers.
The wattages you posted are standard for multiple dimmers.

Once you identify type of dimmer, add a comment and say if dimmer is single-pole or 3-way.
A 3-way dimmer would be in a hallway, where more than 1 device controls same lights.
Single pole is where one device controls lights.

If I know what dimmer you have, I can search for the product and add another comment.

Or search for yourself:
For example, let's say you have 3-way Skylark dimmer.
Do a google search for 3-way skylark dimmer:
http://www.google.com/search?q=3-way+skylark+dimmer&ie=u
Or 3-way rotary dimmer, etc.

If information above doesn't help, then take advantage of fixya phone service.
Fixya expert can talk with you over the phone for a price.

Dec 22, 2010 | Solar Carlon Thyrocon Dimmer Controls...

1 Answer

I need to wire a 3 gang switches in a 3 gang box


before u start make sure power is off before working with electrical lines ---start with the 12/2 coming into box black [power] white [ground-neutral] and u will have 3 separate lines for the lights so u will have 4 lines total coming in the box== with the 3 light lines take the white and strip back the plastic and connect [wire nut] all 3 to the 12/2 white line --now take the 12/2 black line and connect it to the first switch gold color screw- bottom screw -now take some wire about 2-3 inch strip both ends and connect from the 12/2 black wire connection on the switch and connect to the gold /bottom of switch 2 than do the same for switch 3 connecting the wire from switch 2 so u will have power feeding all 3 switches-- now connect the black lines for the lights to the other side of each switch and ur done

Feb 14, 2010 | Cooper Industries Cooper Wiring 2158V 3...

2 Answers

I have power running to a 2 switch gangbox. Each


As long as the power is running from the breaker panel to the switches rather than the fixtures then it should be pretty simple.

1. Run a new 2 conductor wire from the existing box to the new box at the top of the stair.

2. Install a switch at the top of the stairs.

3. Disconnect the hot wire that is running to the two existing switches and connect it to one of the two conductors running to the top of the stairs.

4. Connect the remaining conductor on the wire going to the top of the stairs to the two existing switches.

Note that if you want to be able to use the Dimmer function from the top of the stairs this will be much more complicated. You will need to put two new switches at the top of the stairs, run more wire, the new switches will need to be 3 way dimmers and the existing switches will almost certainly need to be replaced as well. The wiring will also be much more complicated.

Jan 09, 2010 | Lutron Claro Screwless 2 Gang Wall Plate...

2 Answers

3 LIGHTS TO 3-GANG SWITCH


I draw a little diagram may help you...4344d1c.jpg

Feb 21, 2009 | Cooper Industries Cooper Wiring 2158V 3...

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