Question about AMS Lutron S2-LFSQ Skylark Dual Slide-to-Off Fan Speed Control and Dimmer 2 in

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S2-LFSQ my switch has worked fine for years. Now when the light is on it flashes on and off over and over. The fan switch works fine. Any ideas?

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The only obvious idea I can think of is that someone swapped the light bulbs out for a different kind (replaced an incandescent with a non-dimmable compact fluorescent).

If it isn't directly related to the light bulb, then I would call Lutron's tech support number to help them diagnose. They're at 1-800-523-9466 and are available 24/7.

Posted on Feb 27, 2011

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1 Answer

How do you reverse the fan with the Lutron S2-LFSQ dimmer? The actual fan does not have a switch on it?


Sorry, its not something you can do from the wall-control. Unless the fan had a an embedded/built-in control module, the fan manufacturer's rarely make the "reverse" setting available from the wall control.

Mar 02, 2011 | AMS Lutron S2-LFSQ Skylark Dual...

1 Answer

I bought a Hunter fan Model 21778 that uses 2 incandescent candelabra lights. Before installing it I called Hunter support to see if it was okay to use a dimmer switch for these lights (I had already...


They're right, you don't want to control the whole thing with a single incandescent dimmer. First of all, the fan-speed and the lights will all be controlled by the same dimmer setting (dim low, low fan-speed - dim high, high fan-speed) - and the dimmer's not rated to control fans anyway which can result in exactly what they said.

There is a Skylark control, the S2-LFSQ- where half the knob controls the light, the other half controls the fan. The only problem you may (and most likely) have is that in order for that to work, between the electrical box for the dimmer and the fan, there needs to be seaparate wire run for the fan, and a separate wire run for the light so that the dimmer can individual control both.

If that's a problem, I recommend the MA-LFQM-, which includes a module that you install in the ceiling with the fan. The wall switch it comes with speaks to that module, and gives you independent control of the fan and light without having to install new wiring. I have one of those myself, I've installed one in one of my friend's houses, and they work pretty well and then you don't have to worry about what wires you've got in your wall.

Jan 19, 2011 | Lutron Skylark Incanhalogen Dimmer 600w ...

1 Answer

L purchased a Lutron S2-LFSQ for our bathroom light and fan. l was informed by the store, this item was job specific so wouldn't have fan burnout. l now discovered stamped on the switches aluminum edging;...


Yeah, it matters.

The first thing is that the fan-speed in that control is only rated for 1.5-Amps. The issue with bathroom fans (I have to assume an exhaust fan) is not only how much current they pull during normal operation, but what happens if the fan rotor locks - that can pull some pretty hefty current slugs that the device is NOT rated for.

Also, generally speaking, putting fan-control on an exhaust fan doesn't work that well. If you slow down the speed at all, it significantly minimizes the amount of air-flow going through the room - which means you're using all of that energy for basically nothing.

My recommendation is to instead get Lutron's MA-L3T251- device. Here, you have the dimmer for the lights (same as the control you bought), and you have a timer switch that's rated for general purpose fan loads (up to 2.5A).

Nov 26, 2010 | AMS Lutron S2-LFSQ Skylark Dual...

1 Answer

How to install


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

8263536.jpg

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.

Oct 02, 2010 | AMS Lutron S2-LFSQ Skylark Dual...

1 Answer

II have a switch and dimmer and the three wires from fan and light, no instructions how install it.


You will have power coming in through a black wire and white wire on the cable set that does not go out to your fan. The black will connect to your switch to power it. Then there will be two other terminals on your switch one for your fan and one for your light. The red and black that go out to your fan and light are connected to these two terminals. The whites get connected together. If you mix the red and black up and the switches are controlling the the wrong things, simply switch the black and red wires. (Note: If by three wires to your fan you meant black, white and bare copper this dual switch cannot be used, as bare copper is simply a ground wire and cannot be used as a constant electrical conductor.)

Jun 05, 2010 | AMS Lutron S2-LFSQ Skylark Dual...

1 Answer

Wiring Question


No, the way the motor speed control works is different from the way a light dims. If you connect it, it might work for a while, but it will either burn up the dimmer or the fan motor.

May 14, 2010 | AMS Lutron S2-LFSQ Skylark Dual...

1 Answer

I have two wires and my ground wire coming from my wall. I'm not sure which wires connect togetherwhen installing a skylark s2-lfsq


This is simply a "switch" or think maybe a gate. It is either open or closed. Power can flow through or not.

It does not matter where the 2 (probably black) wires go, just that the ground is on the ground lug.

Nov 03, 2009 | AMS Lutron S2-LFSQ Skylark Dual...

1 Answer

Trying to hook up a Lutron fan control and dimmer


The old switch is just a single pole switch. The new one is for fan speed control. You need to use a regular single pole switch like you had. Or you can use a single pole switch on the Lutron you bought if you can figure out which wires to use. Do you have a meter?

If you need further help, I’m available over the phone at https://www.6ya.com/expert/craig_3fa289bf857b1a3c

Jun 27, 2009 | AMS Lutron S2-LFSQ Skylark Dual...

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