I came home and my house was unusually warm. I checked the thermostat, it was 78 degrees but the a/c stays on 74. I checked the unit and it wasn't on. I checked the breaker box and the breaker wasn't tripped. So i put it to off then back to on and cut the a/c back on, the unit tried to come on then cut right back off and the breaker tripped sort of, it wasn't all the way to the off position but it wouldn't go fully to the on position either. I really need advice, it's me and my 2 kids and although i am female, i am not totally incapeable of mechanical work. Any and all advice will be greatly appreciated.