Vacuum produces intermittent high-pitched whistle from air path

Safety: Power off and disconnect from charger.

• Step 1 – Localize sound: Run the vacuum briefly and listen closely along the bin, wand, and head to find the whistle source. Turn off before touching any moving parts.
• Step 2 – Check seals: Inspect all rubber gaskets and seals for hair or debris. Clean and reseat them.
• Step 3 – Inspect plastics: Look for hairline cracks in the bin, wand, or head. Small cracks can sometimes be temporarily sealed with tape; long term, replace the cracked component.
• Step 4 – Ensure proper assembly: Make sure all parts click firmly into place with no visible gaps.