Yesterday, our simrad
was acting up. Noticed that the rudder
indicator on the ap20 display was bouncing around wildly from port to stb while the boat
was on a steady course (auto pilot in standby mode). Figured it was a loose rudder
sensor as this has happened before. Checked it today, and it is still tight on the rudder and the sensor mount. Couldn't find any loose connections on the circuit board either. At the dock
today, the rudder indication seems correct when I move hard over port to starboard and back to center. Rudder test in the setup menu also indicates OK
Trying to figure out if the sensor went bad internally or if this is an indication that the main ap20 circuit board has failed. Units have performed flawlessly for 16 years.
Any help anyone can offer would be greatly appreciated.