I have a climatemaster tranquility 20 and am having issues with the cooling systems on it. it has been 90+ here so I haven't yet checked to see if heating is working but my assumption would be it is not. The thermostat has the correct voltage to all terminals, as well as the boards in the cabinet itself. The problem is that the compressor will not turn on when the cooling system is triggered. I have the dip switch to no time delay. I have checked voltage into the contactor and out of the contactor going to the compressor. both test within range. When I press the manual switch on the contactor the compressor turns on and runs, and there is power to the terminals on the compressor. The issue is I do not know what that manual switch bypasses that would cause this to happen. I am assuming that the most likely problem would be the capacitor but would like a second opinion on the matter before I go and order parts.