Dead furnace

Glad to hear the problem is solved.

The job wasn't so hard.  Diagnosis was time consuming, mostly because I really didn't know what I was doing.  Other than that, pulling a wire was all there was to it.  That meant taking off covers, vents, even some paneling, along with the inside cover of the air conditioner.  (I did other things that were unnecessary for the job that I did because I didn't know what I was doing.)  Then there was the rolling around on the floor and sticking hands and arms in little holes while trying to focus a flashlight on a little brown wire.  It terms of the effort involved, there was about as much time and energy involved in my cutting grass. 

Sam -- Your idea makes sense but it doesn't match the situation. The pod thermostat, mine at least, is like the one at your house.  There is a toggle switch on the thermostat to choose Cool, Off, Heat.  There are no controls, other than opening and closing manual vents, at the air conditioner or the furnace.

I tried, but not too hard, to figure out where the break in the wire was.  I think it was in the middle of the chase between under the sink and under the bathroom.  That seems very unlikely though, but I still don't know haw the wire would get cut anywhere anyway.  I thought a loose wire in a crimp nut or at a ground would have been much more likely.

TT