If you are over drawing amps on start up and the breaker trips then you probably have a locked or"sticky compressor. You can check this by looking at the sticker on the compressor it will have a rating called LRA(locked rotor amps). If it your amp draw is at this or above this number then your compressor has locked up. Now if it reads lower than this then it needs helps starting. Either way you can try a hard start kit. Just follow the instructions on the package; they have just two wires to hook up: one will go to c on the capacitor and one to herm if you have a dual capacitor, If you have separate capacitors for the fan and compressor it just goes on the compressor capacitor. Easily identified by the higher rating. Now if your high rating is during run time then you should replace the compressor capacitor and see if your amp draw falls in line. If it doesn't you most likely have a bad compressor.