Installed the programmable thermostat yesterday evening. Went very well, on the surface. The screw driving bits for the drill made quick work of the fasteners. When I went back upstairs to turn the power back on, however, I found that maybe I never turned it off, after all. Oy.
Set the programs, things seem ok - except for the fact that the temperature still reads 72. I wonder if disconnecting the thermostat while it was still powered, stalled the furnace or something.