iRobot Roomba Bumper Sensor repairA. First check that the bumper is not stuck and moves freely, than perform an internal test: 1. Verify that the Clean LED is Off 2. Press and Hold both the Dock and Clean Buttons. 3. Press the Spot Button 6 times 4. Release the Dock and Clean Buttons Roomba will enter test-0 and play a sequence of tunes and then begin to flash all the LEDs on the faceplate. In order to advance to the next test, pr
