System just died
My first floor AC just died. Nothing happens when I set the thermostat. All was working fine until Tuesday. Even the fan doesn't go on in the 'on' position. I checked the batteries in the thermostat, the circuit breaker in the basement and the breaker outside. All are on. So, what do I check next before I call michael , the AC fixit guy? I have three zones. The other two are working fine. This unit is about 6 years old. Onlty the outside was replaced back then, not the furnace.