The vacuum produces an intermittent high-pitched whistle from the air path.

Safety: Power off the vacuum and disconnect it from the 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 the vacuum 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 Plastic Components: Look for hairline cracks in the bin, wand, or head. Small cracks can sometimes be temporarily sealed with tape; for a long-term solution, replace the cracked component.
• Step 4 – Ensure Proper Assembly: Make sure all parts click firmly into place with no visible gaps.