The joystick is not
calibrated
Calibration data is corrupted or not set
Fault of the remote controller
No signal from the
joystick
Poor contact between remote controller board
and joystick
No signal from the
Main board
Poor contact between remote controller and
electronics box
Check the connection between the electronics box and the
remote controller
Fault of the remote controller
Fault of the electronics box
Left reducer transferred to the idle mode
Turn the gearbox lever, restart the remote controller
Connect the wire and tighten the nuts
Right drive not
connected
Right reducer transferred to the idle mode
Turn the gearbox lever, restart the remote controller
Connect the wire and tighten the nuts