Lately my air conditioner has been acting up. I have noticed that the air handler does not kick on but I can hear the freon moving through the coils meaning that the compressor(outside unit) is running. I end up having to turn it off from the thermostat. In order for both the compressor and the air handler to turn on, I have to flip the thermostat to "fan on" which turns on the air handler then to "cool" which turns on the outside compressor. This keeps them both running together. Most of the time they both end up turning on and off together when the temperature is reached but sometimes the same thing happens again where only the compressor(outside unit) turns on. Can any one tell me what is happening here? Is it the transformer, relay, or capacitor? Any help is greatly appreciated.