I am trying to install a motion sensor switch on a 3-way switch in my laundry room. both 3-way switches function normally if I use them now. One 3 way switch, we will call it #1, is by itself. It has 4 wires, the live black wire, red traveler, white traveler and ground. No other cable coming in or out. The switch has the black on the common (darker) screw, with red above it and the white by itself on the other side. There is always power despite switch position at the red and black wire.
The other 3-way switch, we will call it #2, also has a fan switch located with it in that box. Multiple cables coming in and out. The 3-way switch has same configuration with a black wire in the common (darker) screw and white and red in same locations. With a working 3-way switch on there, power switches between the red and white depending on both switch positions. It seems like the power TO THE LIGHT is the black screw on the common (darker) screw because light will not turn on unless power is running through that wire on switch #2.
I put the motion sensor in the switch #1 position, with black as the load wire, red and white as travelers and ground. When the motion sensor is installed, it is a 3 pole motion sensor switch, it will not work consistently. The motion sensor switch will click on and off, but it will only work depending on the position of switch #2. It seems all messed up...
