Lights and Sound Troubleshooting
Red Bright Light One Beep The front wheel might have been stuck
Two Beeps Side brushes might gave been stuck
Three Beeps The vacuum fan might have been clogged
Four Beeps The rolling brush might have been stuck
Red Blinking Light Two Beeps The front bumper might have been stuck
Three Beeps Cliff sensors might have been covered
Four Beeps Failing to be back to the charging dock