F6 code, vacuum runs but makes a high-pitched whine, suction lower than normal

Safety first: Remove the battery and dust cup before cleaning internal parts.

• Step 1 – Deep clean cyclone: Remove the cyclone assembly from the dust cup. Use a soft brush to clean each cone and mesh thoroughly. If washable, rinse under cold water and let dry completely for 24 hours.
• Step 2 – Inspect inlet mesh: Look at the metal or plastic mesh at the motor inlet behind the cyclone. Remove any lint or debris with a soft brush.
• Step 3 – Check seals: Inspect rubber seals around the cyclone base and dust cup. Replace if cracked or deformed.
• Step 4 – Reassemble carefully: Ensure the cyclone is seated correctly and the dust cup locks firmly into place.
• Step 5 – Test suction: If F6 persists and suction remains low, the cyclone assembly may be warped or the motor fan may be damaged, requiring replacement.