Robot vacuum shows E9 and stops; often associated with the dust bin or filter not being recognized.

Safety first: Turn OFF the robot and remove it from the dock.

Check dust bin installation:

• Remove the dust bin completely and inspect it for cracks or deformation.
• Reinsert the bin firmly until you hear or feel a click.

Inspect detection mechanism:

• Look for a small plastic tab or magnet on the dust bin that engages a switch or reed sensor inside the robot.
• Ensure the tab is not broken and the magnet (if present) is still attached.
• Use a soft brush to clean dust from the bin detection switch area.

Check filter seating:

• Remove and reinstall the filter(s) in the dust bin, ensuring they sit flush and the bin can close fully.

Reset and test:

• Power the robot ON and try starting a cleaning cycle.

Advanced: If E9 continues, the bin detection switch or reed sensor on the mainboard may be faulty. This requires disassembly and possible replacement of the sensor or mainboard by a technician.