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Old 06-29-2019, 09:51 AM   #1
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Raymarine EV 200 Went Berserk!

Took friends out yesterday on my boat & when I selected "go to cursor" with the auto pilot, the boat immediately started a tight circle. Tried it 2 more times with the same result. Then, without referencing a cursor destination & in AP standby, I selected the Auto and the boat, again, started a circular pattern.

Any suggestions out there?
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Old 06-29-2019, 10:19 AM   #2
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From he FAQ section of Raymarine support:

Rudder goes hard over when autopilot commanded into Auto or Track mode
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Old 06-29-2019, 10:40 AM   #3
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What did the rudder position indicate when it did that? Hard over? or straight ahead?

Assuming it has been working until now, we know the motor works as it put the rudder hard over. If you didn't change anything, then the motor phasing should be the same as the last time you used it. That leaves a fault in the rudder position sensor, or perhaps it has become disconnected from the tiller arm (there is a spring in them that will put it hard over if disconnected).
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Old 06-29-2019, 11:17 AM   #4
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A friend of mine had this happen when he activated the autopilot. We traced it to the rudder position sensor. We tried unhooking the sensor and the problem went away. The autopilot still works and has been working just fine ever since. It is really hard to access the sensor so he just has gone without it..
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Old 06-29-2019, 12:21 PM   #5
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It looks like you pilot is "Detecting Magnetics". Did you recently upgrade the software? If so, yo need to run the set up again per these instructions:

Evolution Autopilot Setup
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Old 06-29-2019, 01:29 PM   #6
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Another thing to check: did someone throw a magnet on top of the EV-1 sensor?
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Old 06-29-2019, 01:32 PM   #7
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Quote:
Originally Posted by Comodave View Post
A friend of mine had this happen when he activated the autopilot. We traced it to the rudder position sensor.
Same thing happened to me with my Raymarine 6002 pilot. New sensor fixed it right up..
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Old 06-29-2019, 05:29 PM   #8
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I would just unhook the rudder position sensor and see if the problem changes. It is simple to do.
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Old 06-29-2019, 05:57 PM   #9
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What did the rudder position indicate when it did that? Hard over? or straight ahead?
.
Hard over...enough that the boat started to turn a tight circle at 10 knots. After that, I went to "stop go to" and tried going from standby to auto...same result.
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Old 06-29-2019, 06:32 PM   #10
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The rudder went hard over - we know that - that steers the boat. What did the indicator on the display do? Does it follow the rudder position correctly? If it does then the problem is not likely to be the rudder position sensor.

If the position indicator on the display always indicates hard over, then that is likely your problem. If there is a position sensor, and it is indicating hard over because it is disconnected or faulty, the autopilot is going to try to move the rudder the other way (thinking to center it) and you will spin circles.
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