Robot vacuum runs but leaves a trail of dust; overall suction is weak even with no error code.

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

• Empty dust bin: Remove and empty the dust container completely.
• Clean/replace filters: Remove the pre-filter and HEPA/fine filter. Clean or replace them according to the Philips manual. Never operate with missing filters.
• Check suction path: Inspect the inlet at the main brush area and the internal duct in the dust bin for clogs. Remove any compacted dust or debris.
• Inspect main brush: Clean hair and fibers from the main brush and end caps to ensure proper airflow.
• Test suction: Run the robot and feel for airflow at the exhaust. If airflow remains very weak, the suction motor may be worn and require replacement.