I just turned the A/C on for the first time this year and I noticed that my house was not cooling. I felt the air coming out of the register and it was warm. I looked at the thermostat and it was set to 72, the room temp was 79. So I checked on the A/C and it was running. Next I checked on the furnace, it was also running. I'm no expert but I'm pretty sure that isn't supposed to happen. Any advise on what might be going on here? I am stumped.