![]() ![]() If you are placing the WeMo next to three way B (closer to fixture): WeMo BLACK (Light bulb) to COMMON terminal of existing three way switch.WeMo BLACK (Lightning bolt) to BLACK or RED power line currently attached to COMMON terminal on existing three way switch.If you are placing the WeMo next to three way A (closer to line voltage): WeMo GREEN wire to the BARE wires in the box.When you do, connect the wires as follows: You need to find the one of the real three ways to make this work. This switch cannot be controlled by the WeMo. (The white wires are actually being used as hot lines and should have been marked with black tape or a black marker). This is a switch used between two three ways to give an additional location to switch a circuit on and off. The existing switch you are describing does not sound like a three way, but a four way. Whether this works for you depends on whether you are willing to be sure to turn the three way setup to on before you leave and then control the system with the WeMo. However, If it three way pair is off (the swithces are not turned to the same traveler), then the circuit will stay of, regardless of the WeMo setting. WeMo effectively interrupts or connects the power either before or after it goes through the three way setup. These illustrations do NOT show neutral and ground wires which MUST be connected as well. ![]() The WeMo can be added to this circuit by placing it between the hot line and the common terminal on three way switch A or between the common terminal and the fixture on switch B. There are actually four possible ON combinations and four OFF combination. It also does NOT show neutral and ground wires which MUST be connected as well.Īll of the illustrations show just one ON position for the 3-way/4-way setup. This illustration also shows the 4-way switch described by OP. The circuit is on when both switches are turned to the same traveler and off when they are turned to different travelers. Rather there is traveler 1 and traveler 2 positions (not labeled that way but called that for illustration). On the second three way switch (B), closer to the light or other device, the power comes in on one of the two travelers and leaves the switch via the common if and only if the switch is thrown to the same traveler as switch A.įor three way switches, there is no on or off position. For the switch closest to the power supply (A), current comes into the switch on one side (on the common terminal) and leaves the switch on one of the two terminals on the other side (the travelers), depending on which direction the switch is thrown. Each switch changes the state that the other switch has created. The difference is a three way switch is one of a pair. It allows a circuit to be on or off, based on whether that switch is on or off, period.Ī three way switch also turns a circuit on or off. The WeMo light switch is a simple on and off switch (as far as your electrical system is concerned yes, I know it does more). But, if the lights are already off because the three ways were used to turn them off, the WeMo will not turn them on. When you turn on the WeMo (at home or remotely) the lights will go on. When you turn off the WeMo (at home or remotely), the lights will go off. You can add it to a three way circuit to turn lights on and off if and only if the three ways were first set to leave the light on. ![]() You can't convert the WeMo switch to replace a three way. So how might I go about figuring out what wires on the WeMo light switch to connect to what wires currently connected to the existing 3-way switch to pull off this functionality?Īny tricks/hacks that might help me keep the functionality of at least one of the two other three-way switches and have the third WeMo light switch altogether? I do wish Belkin would just come out with a 3-way version already, but until that happens, I guess I'm stuck taking this route if I want the WeMo capabilities (and I do). Two black (labeled switch, one with a lightbulb icon, the other with a lightning bolt icon), one white (labeled neutral, with a zero icon), and one green (labeled ground, with the standard icon for ground). The new Belkin WeMo light switch has four wires of its own. There appears to be a couple loops of bare copper wire inside the metal box, but currently it does not appear to be connected to the existing switch in any way. In my case, the light switch I want to convert/replace has four wires. Well, if I can't convert one of the three switches to be a Belkin WeMo light switch and keep the other two switches working, I'd like to just convert one of the switches to be a WeMo light switch as a single pole, such that the other two switches would simply be left in their on positions. I want to control it with a Belkin WeMo light switch, which specifically states is not compatible with 3-way switches/fixtures, sadly. Our foyer chandelier has three switches that control it. ![]()
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