Roomba Robotic Floor Bagless Vacuum "phone continuously beeps" Questions

beeps. Phoned service they advised to blow air, done that, no change. So I assume the bumper switches are on continuously. What is the next step? How do I take the 540 apart to repair the switches? Hi

roomba 4108 does not charge We bought a brand new model of roomba after a few weeks it would not charge called roomba company did not help left the unit for over a year thought to try it again bought ...