[C320-list] Issues with ST4000+ Autopilot

[Greg Arnold]

Do you have a rudder position indicator?  If you do and it fails, you
could get behavior like this.

On 7/14/2024 10:32 AM, John Stetson via C320-list wrote:
> Our Raymarine ST4000+ Autopilot system is original, installed in 1999.
> When activating the AUTO mode, the helm goes hard to port.  We have
> verified the Dealer settings and recalibrated, including successfully
> turning the boat to swing the compass.  Intermittently, the autopilot will
> work correctly and then, unpredictably, initiate the same turn on its own.
> We have confirmed that there are no ferrous metals within 0.8 m of the
> fluxgate compass.  Would appreciate any words of wisdom short of upgrading
> to the Evolution EV-100 Wheel Sail Autopilot.
>
>
> John Stetson
> Morning Star...Again
> Hull 578
> 1999