I recently installed 2 new dimmer switches for new construction recessed lights in my living room (LED bulbs). At first these dimmer switches appeared to be working without issue.
However, a few day later I installed a doorbell transformer off of the same circuit that the dimmers are on. Later that day I noticed that the switches weren't turning on my lights anymore. I came back later and tried again and it worked. So then I proceeded to hit each switch a number of times, and noticed that sometimes the lights would turn on, and other times they wouldn't. I could not discern any noticeable pattern, it seemed totally random if they would turn on or not. Also of note, this dimmer has a locator light that turns off when the lights turn on. However, when the switch is flipped and the lights DON'T turn on, the locator light stays on.
I have not yet tried disconnecting the doorbell transformer to see if the switches go back to normal (quite certain this problem didn't exist before the transformer). I am going to try that tonight, but I don't see why that would affect anything.
Has anyone experienced this before? Any ideas on what may be wrong here?
The switch in question is a Legrand Radiant Tru-Universal dimmer switch.