Robot vacuum powers on but will not start cleaning; beeps or returns to dock without an error code.

Safety first: Keep the robot on a flat surface away from stairs while testing.

• Confirm bin installation: Remove and firmly reinstall the dust bin until it clicks.
• Check battery level: Ensure the battery indicator shows sufficient charge; if low, allow full charging before retrying.
• Inspect bumper and sensors: Make sure the front bumper moves freely and underside cliff sensors are clean.
• Mode selection: Verify the robot is set to a cleaning mode (AUTO) and not in PAUSE or DOCK mode via the app or onboard controls.

If the robot still refuses to start with no code, a hidden sensor or logic fault may be present and should be diagnosed by a technician.