The feed into the house comes into a main circuit breaker box. There is a sub panel hanging off the main breaker panel. Out of this sub panel is fed (among other things) a 20-amp circuit feeding some recessed lighting fixtures and ceiling fan in my den.
The circuit comes straight from the sub panel to a junction box in the ceiling. From there it feeds a switch box on the wall containing two single-pole switches (one for the lights and one for the fan). The neutral is not carried down to the switch box. Everything works great with the exception of the problem described below.
When the switch is in the closed position, I get a voltage reading of 120-volts (reading both to neutral and ground from the "hot") - which is what I expect. However, when the switch is in the open position I get a reading of about 30 volts (reading both to neutral and ground from the "hot") - which I do NOT expect. Can anyone lend some wisdom here as I am a bit stumped.
As I type this it occurs to me that the switch might be bad and that I should check this before proceeding much further. It is a brand new switch but Occam's Razor tells me to start there.
Thanks in advance for your time . . .