Lutron rania dimmer how does this connect to an existing 2 way system and what connections are required

It looks like an existing three way dimmer, being used as a "one way" dimmer. The two wires the existing dimmer connects to is the same two wires the new dimmer will connect to.
Take pictures so you can back track just in case.

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!

You can access Lutron's Wiring Library here:

http://www.lutron.com/Service-Support/Technical/Pages/WiringDiagrams.aspx

I couldn't find an MA-400 or High Power 2 dimmer, so you might want to double check the model numbers and look for a match in the link above.

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.

Lutron Dimmer manuals
http://www.lutron.com/Service-Support/Technical/InstallationInstructions/Pages/InstallationInstructions.aspx?syst=Dimmers+%26+Switches&prodn=Maestro%C2%AE+dimmer+%26+switch

Lutron manuals show a couple things that might be affecting you lights.
1) Wattage: If you have wrong wattage dimmer
2) Type of light bulb: Dimmers work on different types of bulbs
3) Wiring: You say you got 3 wires going to the chandelier? Why you got 3 wires? Is this a 3 way switch? Are the chandelier bulbs wired separately so you can control groups of bulbs with different switches?
Does the dimmer have 3 screws? A dark-colored screw and 2 brass screws? If so, then that sounds like a 3-way dimmer. A 3-way, is where more than one switch controls the same light.

Does the dimmer have 2 screws? Then that dimmer controls a single circuit. Your black Hot wire from breaker box connects to one screw and the black wire to Load connects to other screw.
A quick glance at Lutron wiring manual shows that Hot and Load wires connect to either screw.
The question is your 3-wires from the chandelier ... does the black Hot wire from breaker arrive in the ceiling box first? Or does it arrive in the wall box first? If your Hot arrives in ceiling box, then the Hot must come down to the switch box and connect to a screw on the dimmer >>> a second wire connects to other screw on dimmer and travels up to the ceiling box where it connects to black wire on chandelier. The white wire on chandelier connects to white Neutral.
4) Dimmer might be bad

1) Overview of product indicates it dims by electronics (they say saves 15% electricity)
The electronics might be bad
http://www.lutron.com/Products/StandAloneControls/Dimmers-Switches/MaestroDimmerSwitch/Pages/Overview.aspx

2) Load types
Different dimmers are made to work with different types of lighting
Depending on your model number, the type of load may be a factor
http://www.lutron.com/Products/StandAloneControls/Dimmers-Switches/MaestroDimmerSwitch/Pages/Models.aspx

3) Total load
A regular 15 amp light switch carries 1440 watts
If you have the 600 Watt dimmer, load wattage should not exceed 600W >>> add up total bulb wattage

4) Lutron seems to have about 60 different manuals
A quick look at the wiring seems straightforward 1-1 wiring replacement with ordinary switch
Did you connect ground wire to green screw on dimmer?

5) If the dimmer and load requirements match with the dimmer you own, I think the problem might be a short .... exactly where the short is located is solvable by testing the lights and timer and surrounding circuits with a multi-tester >>> the testing would start at the dimmer.

6) All considered, you could replace the dimmer with another one from Home Depot and see if same problem persists.

Lutron S2-LFSQ is made to control one ceiling paddle fan & 1 light. Switch will not work on florescent lights.
See manual

To use this product, your fan and light must already be controlled by 2 separate switches.

If you have just one switch that turns on the light & fan together, the S2-LFSQ will not work (without additional wiring).

Okay, you have two switches. One switch turns fan on-and-off. The other switch turns light on-and-off.

Here is wiring diagram from manual: See diagram larger



Here's how to wire:
-Before disconnecting wires from existing switches, mark each wire with tape and pen.
-There is one wire that feeds power to both switches > mark this the 'Hot wire' and it connects to Lutron black wire (if you are unsure about this wire, remove switches, separate wires, turn on power and test each wire to bare ground, tape tester leads to wood sticks so hands are away from power, Tester lights up on Hot wire)
-The switch that controls fan > mark this the 'Fan wire' and it will connect to Lutron Yellow wire
-the switch that controls light > mark this the 'light wire' and it will connect to Lutron Red wire
-Lutron Green wire or bare wire connects to bare ground wire.

My first thought is that if you were using these devices to replace existing light switches, the MA-S8AM has an additional electrical connection that wasn't necessary with a light switch or the MA-600. The MA-S8AM has an addtional screw on it (I think its silver in color) that connects to the neutral wire in the circuit. Hopefully you have a bunch of white wires all wire-nutted together in the back of the box - pull a connection from there and attach.

If that's not the issue, then I would call Lutron's tech support. They're available 24/7, so you may as well. They're at 1-800-523-9466.

You will need to return the 3-way dimmer and get a single pole dimmer, as the Lutron Skylark series is suspectible to failure if connected to a live circuit first, or misconnected at intial installation. As an electrician, I ceased using these dimmers years ago, due to the rash of call-backs by customers and went with Leviton togglers and have had excellent results.

If you purchased it at a 'big box' store, they will accept the return as a defective item, as they have national agreements with their suppliers to accept customer returns. Just tell them it didn't work and you want a store credit, you can then purchase the lower priced single pole dimmer you need and save some money in the process too.

Hope you find this Very Helpful - best regards!

Is it connected to a fan motor also? - most dimmers are for lights only - if there is a ceiling fan connected you may experience a humming sound from the dimmer