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Old 04-12-2012
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Problem with autopilot

I am having a problem with the autopilot in my new to me sailboat. The unit is a Raymarine ST4000+ wheel pilot.

When I first tried using it, it worked fine but would randomly "reset" as though the power had been switched off and on again. I checked the wiring from the control head to the switch panel, cleaning contacts, etc. This seemed to improve the situation somewhat, now the unit does not reset, but instead it complains of "Low Batt". I'll be cruising along under autopilot and at random times it will start beeping and flashing "Low Batt". It does this for a short time and then resumes as though nothing was wrong. I see no difference under sail or with the motor running. The batteries are not low, voltage is 12-13 volts.

So today, I tried bypassing the electric panel. I connected a cable directly from the battery to the control unit. No difference. I still get the "Low Batt" warnings.

Any ideas what to look at next?
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Old 04-12-2012
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Re: Problem with autopilot

Not sure I can help much except to say that we had the same issue with our (former) RM ST4000 setup. Equally random... By that time the wheel drive had calved half of its plastic rollers and we gave up on it and upgraded to the new (gray) drive and a RM S-1. That issue has disappeared.

... probably not what you wanted to hear!
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Old 04-13-2012
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Re: Problem with autopilot

You should take a real close look at all the wiring terminal ends to check for any degradation of the wire size. I've had a couple instances where changing/recrimping new terminals on the wire cured the electrical problem.
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Old 04-13-2012
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Problem with autopilot

As far as dubugging it sounds like you did the best thing you could have done by tying it directly. So if there is a problem it has to exist in both scenarios. What wire gauge are you using an how long is it? Any chance high current draw by the autopilot is dropping the voltage across the cable? However, this would probably have to be pretty high current or pretty small cables.
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Old 04-14-2012
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Re: Problem with autopilot

I'm looking for an st4000 RM autopilot control head .abby22
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Old 04-14-2012
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Re: Problem with autopilot

Quote:
Originally Posted by abby22 View Post
I'm looking for an st4000 RM autopilot control head .abby22
I have a nice one for sale. Mostly works, see above.
liveincolor likes this.
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Old 04-25-2012
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Re: Problem with autopilot

Anyone have a control head for an Autohelm 3000. Mine just started acting up, won't hold a course even in flat water.
Is this thing an antique? Should I replace the whole system?
What autopilot has worked well for you, and would you buy it again?
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