If you call HB support the first thing they will have you do is a master reset. With the unit powered on, Press the MENU button twice to the main menu on the system. Then you press the RIGHT cursor until you get to the SETUP menu tab. Once you have reached the SETUP menu tab, use the DOWN cursor until you reach RESTORE DEFAULTS, you will then press the RIGHT cursor key to restore the defaults. To confirm press RIGHT cursor again.
Hope that helps
Fair Winds and Following Seas
Bill H. PTC USN Ret
Chesapeake, Va