Question about Lutron MIR-600MT - Dimmer Controls - 600W - Multi Location Incandescent Dim
The products ARE compatible with one another. I don't know why their tech support would give you different answers each time, other than I can tell you from personal experience, trying to describe wiring combinations/configuraitons over the phone is not an easy process. Regardless...
The critical thing is to make sure that on all three devices, the blue screws are wired to one another and ONLY to one another. Also make sure that on each device, none of the screws are shorted together, each screw should be going to a separate connection. There are some additional best practices, but those are the two critical pieces.
If you're still struggling with it. Take it piece by piece. Just power up the dimmer, and short out the MA-R locations (not including the wire attached to the dimmer's blue screw). Prove the dimmer works. Add in one MA-R, get that up and running. Then add in the second.
Posted on Oct 14, 2010
The best I can do is tell you how a 3 way and a 4 way switching circuit works, once you understand that all you have to do is throw in the dimmer (note: you can only have one dimmer in a circuit, the rest of the switches must be simple on and off switches). I did some research on the dimmers you purchased to use, and it claims that the accessory dimmers can be used along with the MIRELV's as you have said but in my experience when you try to do something like that, one dimmer would have to know what the other two are doing, and that is not happening, and unless the current is electronically controlled on the whole circuit by each dimmer, you'll never get all three dimmers to work.. So lets see if we can get it wired properly and get it to work, if not you will have to try using one dimmer and two regular switches and see if it resolves your problem. In every four way circuit there is at least 2 three way switching devices, one at the beginning of the circuit where the power comes in and one at the end of the circuit where the power goes out to the lights. You can have numerous 4 way devices in the middle of the two three way devices. So let start at the first 3 way device, which will have three terminals one it. Every three way switching device has whats called a common terminal, this is where your incoming power attaches. Then you have 2 "traveling" terminals where your traveling wires will connect (called this because your power will travel to or communicate with your four way switch through these wires (note: you cannot mix these wires up or your circuit will not work). Order doesn't matter at the three way, but at the four way you need to keep them straight; there are four terminals on your four way switch designed to pass the current along that you fed it from the three way. The are two types of four way terminals, some times incoming wires go on top or bottom terminals, sometimes on left or right side. Either way if incoming wires are on top and you have red wire on one side and black on the other when power leaves at the bottom you keep the colors on the same side (Note: all these concept apply if your dimmers have pigtail wires to attach the wires to as well). And once you get to you final three way switch you want to keep the traveling wire colors the same as the terminals on the first three way switch. The power will leave this last switch and go out to your lights through the common terminal. If your dimmers happen no to work, remove two devices and replace with two normal switches, just make sure they are three way or four way switches as needed (remember four ways go in the middle of two three ways). Three way switching and four way switching is very confusing, and I know the Lutron company won't try to explain how things work, just take your time with it.
Posted on May 28, 2010
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Posted on Jan 02, 2017
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I cannot find a specific troubleshoot manual for Lutron dimmers
So I suggest 4 things:
1) Feel the dimmer switch for heat >>> if it is getting hot (not warm), then that dimmer is dangerous, so remove dimmer immediately, add up your total bulb wattage to make sure you're below the 600 or 1000 watt capacity of you model dimmer
2) Look at the list of manuals shown at link, and make sure your dimmer matches the type of bulb you are using. Your dimmer model number and wattage should be printed on side or back of dimmer.
3) These dimmers use electronics to control the lights. Electronics go bad. The higher the wattage controlled by your dimmer, the more heat, and the shorter the dimmer life.
4) Short in the wires. Replace your dimmer with one from Home Depot and see if the condition persists. If it does, then a short is probably somewhere in that circuit. Troubleshooting a short is another long answer that needs more wiring detail ... please repost if you have a short.
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