If you are experiencing troubleshooting during usage of Barrier you can check LED light on electronic box which can give you description of hardware problem if there is any.
1x - MAG - There is a problem with magnetometer - cover needs to be changed
2x - ACC - There is problem with accelerometer inside motor tube
3x - Laser - There is a problem with laser inside cover cover needs to be changed
4x - Acc on EU - There is a problem with accelerometer inside electronic unit - change electronic box
5x - Bus 0 error - change electronic box
6x - Bus 1 error - change electronic box