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ya, just 2 wires coming in (2 white wblack 2 red)
just replacing old switch (had to move to other side of wall )
and no i'm not 100% sure that the red wasn't used before. when i removed the old switch i wanted to keep some of the color on the wire so i knew what went where but it wasn't possible now i'm lost.
Please check to be sure the red is connected to the black screw on the second switch.
This does not seem correct with the wiring connections in the ceiling. It should be a black wire not red.
Let me know what you find
So th ewhite of this 3 wire should connect to the other white wires in the box.
The black feed will connect ot hte common screw of the sw. The red and black of the 3 wire will go to the other two screws either silver or brass depending on the switch.
The common screw should have a jumper to the single pole side of the switch to power that side. The other black wire will connect to the last screw.
Does this make sense?
Hope you have a great New Years