I have been acquiring 2-4 crown RC5530 s per year. we end up junking most because we cant get into the service section to calibrate items such as new brake switch etc. these machines occasionally ill get in with passcode 2311 but very seldom. Can you recommend a "controller" or programmer that would allow us to go into service etc, without the passcode. Ive seen a few diff models around 1400.00 but they arent real specific whether would work or not without passcode. I beleive these access 3 units are DUALAC jst seems a waiste to keep junking these! thank you in advance!