I have bought a couple of Philips Hue white sets, including two dimmer switches, and started playing with them and various compatible apps. Normally, a dimmer indicates the command transfer by a green built-in LED. However, After some playing, I noticed that one of the dimmers occasionally shows a red light with the built-in LED. What does it mean? The Philips user manual only explains how to mount the dimmer to the wall.
P.S. Would be great if someone with high reputation could create a