I changed the batteries, then the machine will not work. The hydraulic system is working properly.
But when you accelerate start a little light walking and direction of the arrow goes off and the machine stops.
Niongun shows no error in the display.
With the machine in the air will be rotated a wheel over the other, you disconnect the sensors and continues to do the same. Replaced the accelerator switch and the brake of the seat. And still not working.
You can give us a clue?
A greeting.