Cleaned it and tested it. It starts up and the hot air blower kicks on when at temp but does not seem to be blowing much air. It can see it spinning. When I adjust level up and down on the there is no increase decrease in noise/fan speed like their normally was. Also the thermostat button does not work now. It does not change it from thermostat to manual. It is stuck on manual. Is it a bad board? Which one? Any help greatly appreciated.