IRobot Roomba Defect not working how to perform Diagnosis self test

IRobot Roomba Defect not working how to perform Diagnosis self test<br />-~-~~-~~~-~~-~-<br />Please watch: "IRobot Pool Cleaner in action" <br />➨ https://www.youtube.com/watch?v=zNwP11Ek90Y<br />-~-~~-~~~-~~-~-