I am trying to install two Lutron dimmers in the same box. The dimmers are models MA-S8AM-WH and MA-600WH. I can get get the MA-600-WH to work but not the MA-S8AM-WH. Anyone have any hints.

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.

http://www.lutron.com/TechnicalDocumentLibrary/0301122A.pdf

On the first page, its the wiring diagram smack-dab in the middle.
If you couldn't find it before, its because the MAW-603-RH-WH is a package containing two other products, the MA-600 and the MA-R. So the instructions I have noted above are appropriate.

1) If this installation was working before, the Maestro has a small pull-out circuit breaker that lets you reset the device. This is called the FASS Front Accessible Service Switch, located at bottom of dimmer where it meets cover plate.
Open sample Lutron Maestro dimmer manual to see FASS illustration
http://www.lutron.com/TechnicalDocumentLibrary/0301106A.pdf

2) If this is new installation, then double-check your wiring and check that load matches dimmer capacity: 600 watt incandescent or halogen, which excludes CFLs apparently.
Some electronic devices have shortened lifespan on circuits that are not clean. Use circuit analyzer on outlet on same breaker to see if line has interference.

3) I don't see MAW-600 W listed among Maestro dimmers, so I don't have that specific manual.
http://www.lutron.com/Service-Support/Technical/InstallationInstructions/Pages/InstallationInstructions.aspx?syst=Dimmers+%26+Switches&prodn=Maestro%C2%AE+dimmer+%26+switch

4) Amazon certainly shows the MAW-600 W, in case you need a replacement.
http://www.amazon.com/Lutron-MAW600H-WH-Electronics-Maestro-Dimmer/dp/B000BPCWQE

5) Lutron has customer service numbers:
1.888.LUTRON1 (588.7661)
1-800-523-9466

Add a comment for more free help.
Also take advantage of fixya phone service.
For a price, expert speaks with you over phone while you work on dimmer or any do-it-yourself project.
Fixya is always less expensive than a service call.

Go here:

http://www.lutron.com/TechnicalDocumentLibrary/033100b.pdf

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.

It would be helpful if you clarified what "stopped working" means. Regardless, their tech support center at 1-800-523-9466 can help you figure out why its happening, is available 24/7, and will more than likely replace the units for you.

There should be no interconnection between the dimmer for the ;lighhts and the media power .. isolate the dimmer / lighting circuit and troubleshoot it separately,

Here's a link to an article that explains the wiring. If you've followed the guidelines, then maybe you have a faulty dimmer.

http://www.ezdiyelectricity.com/?p=441

http://lutron.com/CMS400/page.aspx?id=16977

The black screw is the common (either power or switch leg depending on which side of the 3-way you are working with), the brass screw is one traveler and the blue screw is a low voltage communication lead (second traveler). I have attached a link to Lutron's wiring diagram pages, just select your dimmer.

Go here for download instructions:

http://www.lutron.com/cms400/PageBuyNow.aspx?id=16977&mn=1815


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