I am having a little difficulty fixing the wiring in my house. I have a stairwell with a 3 way at the bottom and at the top is my upper bedroom. There, I have a combination switch with a single pole and 3 way combined, a Leviton 5241. Unless one of the switches is on, the other won't actually turn on and off the lights. To try and fix the assumed wiring mistake, I first took the (breaker flipped first) bottom switch out and took the wires off and measured which one was hot, and found it to be the red one. So, it was wired back up in the same way as before. The hot to the brass screw and the two blacks (assuming they are the travelers) to the bronze screws.

I then went upstairs and did the same. Found the hot, a red wire, tied it to the common, and then tried to figure out the rest of the wires. Per the downstairs switch, I thought perhaps the blacks were going to be the travelers in my case and changed the wiring around to have both blacks be the traveler wires on the combo switch. I thought this would be it, but it did not fix it, and the same thing was happening as before. Thought I messed up, and then, thinking perhaps somewhere the wire color was changed, put the leftover red and the black seeming to come from the bottom of the box together, which was the same exact scenario as I started. Then I flipped the blacks, which then made the lights alternate on / off if I flipped on switch, making a light permanently on all the time. It was funny though.

But, it was late, so I wired things back the way I found them and went to bed.

Here are some pictures: Three way Upstairs comboCombo switch wiringLeft side of combo switchLeft side of 3 wayRight side of three way.

Appreciate the help.

  • Can you post photos of the boxes that show the other sides of the switches in them? – ThreePhaseEel Feb 26 at 5:03
  • In any cable wiringmethod, it would be rather improbable for the 2 travelers to be the same color. They have to be in the same cable, after all. – Harper Feb 26 at 6:43
  • I have edited the post to include additional pictures. I also would assume the travelers would be different colors, but I didn't end up measuring any sort of voltages on the other two. Additionally, it seems as if the wires coming into that box are from two different places. – Cyadd Feb 26 at 22:15
  • Can we have a photo that shows the right side of the single switch? – ThreePhaseEel Feb 27 at 1:56
  • Apologies, thought my first picture was of the right side. The post now has a right side. – Cyadd Feb 27 at 2:32

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