Cooper 3 Way Dimmer Switch Wiring Diagram Yellow Wire. I went bavk and looked at it. Check all of the wires to make sure that they are all in good condition.
Three-way switches have different methods of connection, depending on the brand of the switch. These wires come from your home's main electrical It isn't uncommon either to have one three-way switch in the same box as two or even three others. I hadnt looked at the diagram before answering.
I have tried every way I can think of and can't The switches are equipped with a black, yellow, and red wire (master) and then black, yellow, and gray (slave).
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The wiring method will depend on whether your power goes to the switch first or the light first. Remove one of the wires under a brass screw. I hadnt looked at the diagram before answering.