Installed Honeywell thermostat, furnace inop
I replaced a mechanical Coleman Mach thermostat with a Honeywell non-programmable thermostat. I tested out the A/C a few weeks ago and it works fine, even with the toggle switch I added for the fan h...
Forum Discussion
WyoTraveler, we rarely use the furnace but it worked this spring on the old thermostat. I agree that the wiring can be an issue and I'll double check continuity from the furnace to the thermostat. I found a few bad connections behind my distribution panel when I installed an EMS last year.
