There can be several causes for this:
Cause: The rechargeable battery is empty.
Solution: Charge the rechargeable battery. Detailed instructions are provided in the 'Charging the SmartPro Active' article below.
Cause: The small plug is still inserted in the jack on the robot.
Solution: The robot does not work on household power. It only works on its rechargeable battery. Therefore, always disconnect the adapter from the robot and the household power before use.
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