08-01-2017, 08:41 AM
The problem went away on it's own but I suspect that is due to the humidity lowering after sunrise. I replaced all four switches with the clackyest models they sell. I didn't see any evidence of LFA but that doesn't mean there isn't some dead ones inside the switches. We haven't had LFA around for several months but if night humidity is a trigger it is possible this has been going on for a very long time and we just didn't notice it. This issue affected two different lights on different circuits. I'm no genius on how how electricity works but it seems like 1 bad switch couldn't be the culprit, and that makes me wonder how long the rest of the switches in the house are going to last. When we lived in Alaska (colder, but also high humidity) many of our outlets started failing at about the same time. I had probably replaced about 1/3 of them by the time we sold the house. I don't know why they put the cheapest possible electrical components into new houses when the overall savings is just a couple hundred bucks but represents the highest financial risk.