Error twenty-four (24) means your Roomba is on an obstacle or an uneven surface and the wheels are spinning, but the robot is not moving. If this is the case, lift your Roomba off the floor, place it in the center of the room and restart the clean cycle.
If this error occurred on a flat surface, check the wheels for obstructions:
- Push the wheels up and down several times 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
