My air conditioner isn't cooling. I have an American Standard (Trane) heat pump/air conditioner. It's almost 3 years old. About 2 years ago I put a programmable thermostat on it. Everything has been fine until last night when I tried the air. It seems like it's running in "heat" mode. I changed the selector to a/c but it didn't come on. When I checked the breaker, it had popped. After I reset the breaker, the air came on but it's not cooling. The air coming out of the "compressor/condenser/whatever outside" is cold but what's coming out of the vents is very warm (warmer than outside and inside air). My wife is almost 8 months pregnant, if I don't figure this out soon, she's a gonna kill me.
