I need a wiring diagram for a Lutron FD-12 fluorescent dimmer

Not sure if you can just splice the extra wires together. The ballast information is what matters converting to just on-off, not the finger switchswitch

The power supply for the led's may not be dimmable. Not sure if this dimmer is for led but I assume that's why you bought it.

That switch says on it that it is for fluorescent lights only. I don't know if you can use compact fluorescent bulbs on that system, perhaps verify if you can or not. The switch has electronics in it and may need that ground wire to get 120 volts to operate. If you have incondescent light bulbs return and get the correct dimmer.

Which dimmer do you have. So I can look up the manual.
Are you using a fan dimmer, or light dimmer?
Does the dimmer feel warm to touch? or hot?
What does the dimmer control? Incandescent? Fluorescent?
How many total watts are being dimmed?
Is this a new dimmer or old dimmer that started having a problem?
Add a comment with as much detail as possible for best available answer.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Hi -

The Lutron D600P is a preset single pole dimmer. Wiring is pretty straight forward as show in this diagram. Recheck wiring and if OK, continue below.

If power is present on both wires (black / red wires), power is being passed through the switch to the lamp and the light should be on. If not, try replacing the lamp.

Minimum recommended connected load is 40 watts. This switch is ONLY for use with filament type lamps - such as traditional tungsten, halogen, etc. It is NOT to control speed of Fan Motors, nor dimming of CFL (compact fluorescent lamps) energy saving types or other ballast operated lamps such as High (or Low) Pressure Sodium, Metal Halide, Fluorescent, etc. as this would create a high heat condition and could cause a fire.

If you're still having trouble, you can contact Lutron Technical Support Center 1.800.523.9466 24 hrs / 7 days www.lutron.com

I hope this helps & good luck!

Since the product is as old as it is, I can't find instruction sheets for it on-line anymore. Your best bet is to call the manufacturer directly. They're at 1-800-523-9466 - its available 24/7 and can help you out than an online forum like this ever could.

You posted under Lutron 3-way dimmer.

You didn't say the number of screw terminals on device or color of those screws.
If your device has two brass screws, then it is single pole.
If your device has 2 brass screws and 1 dark screw, then device is 3-way
If you are replacing 3-way switch, identify wire on dark screw >> connect this wire to dark screw on dimmer. Other two wires connect to either brass screw.

If device has wires instead of screws, the color of those wires is an important clue.
Answer back with the colors of those wire and it is easier to help.

Different dimmers are suitable for different types of lighting.
In an effort to help you, I searched my files for Lutron dimmers.
Lutron has 17 dimmer types, with numerous models under each type
They don't show DL-3PS
http://www.lutron.com/Products/StandAloneControls/Dimmers-Switches/Pages/DimmersSwitches.aspx

Lutron has NT-3PS
http://www.lutron.com/Products/StandAloneControls/Dimmers-Switches/NovaTDimmer/Pages/ModelNumbers.aspx

The NT-3PS is a 3-way dimmer.
Here is wiring manual:
http://www.lutron.com/TechnicalDocumentLibrary/wallbox_wiring_6_7.pdf

If the help above does not get you going, answer back with more information and we can help.

The dimmer you purchase needs to be compatable with the ballasts of the C.F. light. A compact flourescent potlight has a ballast, if your replacing incandescent bulbs with compact flourecent lamps
you still need a flourescent dimmer. Remember a ballast is like a transformer! If you compact flourecent fixture has a ballast by Lutron. then you need a lutron dimmer as there ballasts are not officially compatable with other dimmers, allthough I've seen them work. My advise is buy Pass & Seymour (Legrand) or Leviton.

You have to have a special ballast on the light to dim fluorescent light fixtures. You also have to have a special dimmer.

Certain dimmers can control standard incandescent lamps that use 120 volts while other dimmers can control low voltage xenon or halogen light sources that use 12 or 24 volts.