Hi all, I have an Air Conditioner problem and I think it's the control board. I have a gas pack and AC. The heat worked fine all winter. The Compressor unit outside is a Goodman that was replaced a year and a half ago. The blower is a Trane and it was installed in 1998. About two weeks ago I turned on the air to test it. The blower came on but the compressor did not. I waited a day. Turned the system on and everything worked great. I tried it on Saturday and nothing at all. I believe that the thermostat is not the problem. I had a good thermostat on it and tried a new one. Still nothing. My next try will be to see if I can diagnose the control (circuit) board. Apparently these things self diagnose with a green or red light. I check all circuit breakers. They are fine. I checked all switches, fine. My guess is now that it's a possible short or the control board. I believe that the outside unit is fine but, is not getting a command from the control board to turn on. Any thoughts??