Thermostat

[csichoice]

We are camping and I turned on the AC but the furnace comes on with it. I have the four zone programmable thermostat it is set to cool on both zone one and two but the furnace is coming on with the AC and they are both running at the same time..

[Campin Cajun]

Sounds like something is screwed up with the thermostat. I would try to take the power off for a minute or so then try it again. Just make sure you are not in AUTO mode.

[Joker]

Temporary fix: valve off the gas feed to the furnace. Also, you may be able to pull the fuse or switch the breaker for the furnace.

Maybe your wires have crossed a bit behind the thermostat and are touching each other.