330 Express - Garmin GHP10 Autopilot Issue

spearpressure

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Joined
Dec 8, 2021
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Location
Pensacola, FL
Model
Express 330
Hi all,
Recently purchased a 2012 330 Express. The autopilot had been working great initially though the course corrections seemed a bit excessive. However, this is my first autopilot so I don't have a normal baseline to compare to.

Over the weekend it was working fine then while underway just suddenly stopped keeping course, wind blew it off course and it wasn't turning the motors. No alarms or warnings, almost like the pump just stopped working. Normal steering hydraulic pressure seems fine (when powered up). The heading on the GHC10 where it needed to go showed correct - the arrow and course direction it needed to go but just wasn't turning. I believe the system is a GHP10 with the GHC10 controller. Where is the normal install location of the pump & CCU? Been searching thru the forums here but any tips for troubleshooting these things or where to start would be greatly appreciated!
Thanks!