Robot vacuum leaves visible debris on the floor and has weak suction, but no error code is shown.

Safety first: Turn off and undock the robot before maintenance.

• Empty and clean dustbin: Remove the bin, empty it fully, and rinse if the manual allows. Dry completely before reinstalling.
• Clean/replace filters: Remove the pre‑filter and HEPA filter. Tap gently to remove dust or replace if heavily soiled or older than the recommended interval.
• Check suction path: Remove the main brush and inspect the suction inlet and internal channels for clogs. Remove any debris.
• Inspect main brush: If bristles are worn flat or deformed, replace the main brush with a genuine Samsung part.