Raytheon autopilot 650

[Alexander ramirez]

Hello everyone . Let' see if anyone has encounter something similar . I have a Raytheon autopilot 650 I would give it a course and it would work fine for 15 minutes and go back to standby . I would put auto pilot work for a few minutes and later back to stadby and so on every time shorter period of time in auto . Till you are not able to go on auto. I noticed that the rudder indicates is showing only to port side not to starboard so I purchase a new rudder sending unit. It work fine showing the rudder to both side for 20 minutes now I am back to only showing port side again. I have been checking for loose connections but don' seem to find anything. Any suggestions..?

 

[RollerCoastr]

Mine spent almost 2 decades being "quirky", but never exhibited that behavior. I almost never use auto mode though - I tend to steer manually, or engage Nav mode.

Does yours stay in Nav mode?

 

[NotHerDecision]

Check your voltage. I’ll bet you have low voltage at times. The course computer is very sensitive to voltage drop. Also see if you have conflicts on your seatalk network.