Joseph Meehan wrote:
RBM wrote:
I doubt it has anything to do with the light in the switch, but
rather the screw terminals were made for copper wire only. Find a
switch that says on the terminals cu-al these are rated for either
copper or aluminum

Or you can pigtail copper wire using an approved connection device.



Depends on what you mean by approved and who approved it. The purple
wire nuts are UL approved but the CPSC does not approve.
http://www.inspect-ny.com/aluminum/twistcpsc.htm