I'm replacing an old 3-switch switch in the bathroom with a new one. The old switch has a "Common" terminal (black wire) and 3 unlabeled terminals (one white and two black wires). I also have one unconnected copper wire coming out of the wall, which I presume is Ground, but not sure.
The problem is that the new switch has a "Line" terminal, in addition to a green "Ground" terminal, and three unlabeled terminals. So the old switch had 3 terminals, and new one has 4.
I've tried a few combinations but none cause the switch to work. Any ideas?
Note: Old switch is from a French company, Hubbell.