Roomba 600, 700, and 800 series says “Error seven (7). Spin Roomba's side wheels to clean.”
Roomba 700 series blinks 7 times.
Roomba 500 series beeps 7 times or says “Error seven (7).”
Overview
890
800 Series
700 Series
690
500 and 600 Series
Check the wheels for obstructions.
Push the wheels up and down and shake out any loose debris that may be trapped in the wheel well.
Briskly turn both wheels by hand and make sure they turn freely and that each wheel exhibits the same amount of resistance. If a wheel cannot be turned by hand, place Roomba on the floor and manually push Roomba backwards and forwards, about 1 ft (0,3 m).
If compressed air is available, gently blow air into the wheel well.
890
800 Series
700 Series
690
500 and 600 Series