We moved into our new home just awhile ago and found a two-zone heating/AC system. Or so I thought. Standard two-zone setup (1st and 2nd floors divided) with gas furnace in the basement. Home was built in 2002.
The heat works fine. If either zone calls for heat, the furnace turns on and delivers.
I thought the AC would work the same way, but it doesn't. If Zone 2 (upstairs) calls for AC, it doesn't turn on. We only get AC upstairs when Zone 1 is on.
Is this the way it's supposed to operate? If not, is it likely a thermostat problem with Zone 2? It's one of the thermostats recommended by the zoning manufacturer, but it is not matched (different brand) than the 1st floor thermostat.