One of my light switches has started over heating/melting all of a sudden. This is definitely a new development because this has not happened in the year that we have lived here. I have 9 6W LED bulbs connected to a Lutron Caseta light switch that's rated for 500W. I replaced the melted switch with a new one this morning and replaced all the bulbs with brand new ones too, but it seems to be getting quite hot again. More so than getting hot, it smells like burning plastic.
It seems isolated to one light switch. It seems to be overheating after being on for several hours. Should I get a switch that's rated for a higher wattage? Why would that be an issue all of a sudden? Could there be a voltage change? Could some wires behind the walls have gotten loose?
There are 2 other switches in the junction box that seem fine.