u/Constant_Education_4

I'm stumped. 430x. It stops anytime it gets more than 40' or so from the boundary wire. It then stops, rotates and starts until it gets closer to the wire or it gets so lost in its spinning that the battery runs out. I've changed out the joysticks, both drive motors, and the front loop sensor. When it's stuck, the boundary wire reads in the high 90s. I've put in a large test boundary wire and it does the exact same thing. In short, it's not the front loop sensor, joysticks, motors, unseated cover, or boundary wire. What's left???