I'm trying to replace one of the three-way light switches in my garage with a motion sensor. But I'm confused by the wires on the existing switch. I thought the hot wire goes to the black screw labeled "common" but instead the existing switch looks like this:
- black screw/common = red wire
- brass colored screw on same side = black wire
- brass colored screw on other side = red wire
- 4th screw = bare copper wire (I assume this is the ground)
My new switch has
- black = hot
- white = neutral
- red = primary load
- green = ground
- blue = ?
Which wires should I connect on the new switch?