You also might want to check all your electrical connections. I have found wire nuts to be especially problematic in high current applications in the motorhome. Bad connection equal low voltage. If we believe ohms law as voltage decreases amperage will increase blowing the breaker
Also look carefully at the circuit board front and back. You have different brand ac than me, but the board is a weak link because the compressor current runs through the board. Many of the Newell guys with basement air have installed external high current relays to get the amperage off of the board.