Hi, I'm trying to install the Sunnata LED+ STCL-153MR-WH in a configuration where ceiling lights are controlled from 3 switches. The first switch is a regular mechanical 3-way, the second is a 4-way, and the third switch is what I'm trying to replace with the Sunnata dimmer.
There is a currently a lutron dimmer in that position and all the switches work fine to control the lights. When I replace the current dimmer with the Sunnata, none of the switches work and the Sunnata doesn't even light up.
The wiring is the same for the current dimmer as it is for the Sunnata.
Common to black on the Sunnata, green to ground, and then the black and red in the box (travelers from the 4 way) to the blue and red on the Sunnata.
What am I doing wrong? I've wired and re-wired this thing so many times, I'm out of ideas.
Any help would be very much appreciated!
Thank you.