I got the Minn Kota Edge and finally got it put in boat. The first time out I started using it and it took off great. Then we stop and fished some trees and went to next tree. Then after we was getting ready to leave I pushed down on the pedal and it would do anything but go in a circle. Looked up at the arrow dial and it was 360 off it went around a complete circle and then it finally it straighten out. Then I think it did it once more that night. Went out Sat and it happened one more time. What gives with this or what are we doing wrong Help Please