If your a/c doesn't come on check this

Furnace repair in Mcdonough

First thing to check is the batteries in the thermostat. Second turn off breaker and back on. 3rd see is the a/c is coming on, If you see any thing strange turn it off until a repairman gets there. If you see ice leave it off over night until a serviceman arrives. Do not open door on a/c and start poking around.