Vacuum produces a high-pitched whistling sound during use

Safety first: Switch OFF the vacuum and remove the battery pack before inspecting joints and covers.

• Step 1 – Listen for location: Run the vacuum briefly and move your ear (at a safe distance) along the body, bin, wand, and nozzle to locate the whistling area. Then power off and remove the battery.
• Step 2 – Check bin and filter covers: Ensure the dust bin and any filter covers are fully latched. Reseat them if necessary.
• Step 3 – Inspect for cracks: Look closely at plastic parts near the noise source for hairline cracks. Replace cracked components.
• Step 4 – Clear minor blockages: Remove the wand and nozzle and check for small obstructions at joints that could cause turbulence.

Persistent whistling usually indicates a small air leak. Replacing worn seals or cracked parts will typically resolve the issue.