I have had my dynon autopilot connected and flying via my IFLY720 for about 6 trouble free months. Yesterday, after flying on the autopilot for about 30 trouble free minutes, it started flying me in 360 degree circles. So, after about the third circle, I disengaged the AP and continued on my flight to my destination. About 5 minutes later, I re-engaged AP, and within a minute or two, it started flying me in circles again. What in the world could be going on here?
I did seem to notice that about 10 minutes before the circles started, the AP was making larger than normal corrections to stay on the magenta line. The wind at my altitude had not picked up, and no outside forces that were acting on the plane had changed. I cant really explain it much better than that, but it was just that something didn't seem right with the autopilot in these 10 minutes prior to the circles.
I did seem to notice that about 10 minutes before the circles started, the AP was making larger than normal corrections to stay on the magenta line. The wind at my altitude had not picked up, and no outside forces that were acting on the plane had changed. I cant really explain it much better than that, but it was just that something didn't seem right with the autopilot in these 10 minutes prior to the circles.