Attached is my wiring setup (simplified, not all wires in the 4-gang box where the first 3-way switch is located are shown).
I can’t figure out for the life of me what setup I have. There is no red traveler wire going to my first switch, but there is a red traveler at the second 3-way switch.
There’s two blacks, and one white wire running to my first 3-way switch. I can’t figure out what’s the line, load, and traveler (with one of the wires being white, presumably “neutral” ?).
Using my multimeter, I can measure 120VAC line voltage on the top left connection, which drops to ~52VAC when the light is switched on.
You will have to diagram the entire switch leg to see the connections at the other switches. I’d also test between the bundle that the red is tied to and the white bundle to see if you get a constant 120VAC. Flip the other switches during testing to make sure they stay hot.
It’s possible that red is the incoming line, but it’s being sent to the box on the other end, giving you a line and load in the same box. At this point, this is just a WAG. You won’t know until you investigate the other two boxes.
One way to tell or assist in finding line or load is by looking at the switch and locating the BLK screw or “COM”. Typically line will connect to COM in the switch box (if line/load in separate boxes).
Thanks, your comment really tipped me off here and I was able to solve it.
The red was indeed wired up to the incoming Line. The black/white wires from the other cable were running to my lights, and the black/white wires bundled with the red wire were the travelers to the dead-end 3-way switch on the other side of the room.
Thus, my solution was to re-wire using the:
Line/Load in Same Box (Neutral Wire Setup)
Inovelli Switch + Existing (Dumb) Switch
