Yeah I hear you, pure speculation but I can't see it would be on 2 circuits.

110 Power goes to the furnace, low voltage goes from Furnace to thermostat.

I definitely appreciate all of your insight though.

I'll check stuff out with the multi meter.

I saw no reset button on the fan motor. Fan and motor look failry new actually.

 

In theory, you are absolutely correct. That's the logical approach but I've seen too many illogical setups to make that assumption. I'm hoping that it's something easy so that you'll have heat tonight.

Best of luck on diagnosing it.

 

hahaha Me2!!! Get's chilly when it is 12F out!

 

Something else to consider, lightly tap the Honeywell, I have had contacts going and a light tap will sometimes get her going for a period. Like the others say, you should have it fixed by a pro, but when it's cold out, sometimes the ugly girl is better than a cold bed........

 

Yep, turned out it was the wiring to the fan motor was faulty. Runs good now.

 

Glad it turned out to be an "easy" fix. You sound much warmer now.