Dynamic DX Controller.when I switch the wheelchair on, a red key symbol flashes. If I press any button beside the arm of button, nothing happens. If I move the joystick, nothing happens. However if I press the on and off button, the horn blows short, and the wheelchair switches off.
I have tried running a fridge magnet across the control buttons where it says DX etc, no joy. (The engineer suggesting it is locked, and this would unlock it.)
Any suggestions please?