@Wayne-TP Thanks Wayne. That wire is the only hot one. So I tagged it as Load/Line. Based on my understanding the traveller wires should be in the same cable so I tagged the red and black wires in...

Hi, I wanted to install an HS210 3-way switch but the light bulb started repeatedly turning on and off. I have two sets of wires coming into the first switch box. A three-wire and a two-wire. I...