Check the power, as noted.

These units come apart fairly easily; I have had to open mine up and
resolder a few of the connections as vibration causes them to go "cold" and
contact becomes intermittent.

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In article . net,
Jim wrote:


I had a similar problem with my autopilot last summer half way through a
250 mile trip.

Turned out to be a plug connection, power to controller. The flashing
power light was my clue. A little contact cleaner fixed it.

Gary wrote:

I have a Robertson AP3000X autopilot on my boat. This weekend, I was
running in from offshore and the display began flashing intermittently off
and on for a few minutes then quit completely. It did come back on an hour
or so later and would show rudder position, but nothing else would work.
This lasted for a few minutes then it went back blank and won't come back
on. It seems to be a power problem, but I looked behind the instrument
panel and see no loose or obviously corroded wires.

Before I call a mechanic and spend lots of $$$ troubleshooting this, has
anyone experienced this before and have any ideas of things that I should
check?

Thanks to all who reply!

Gary