Vacuum produces a whistling noise from the handle or dust container area during use.

Safety: Turn OFF the vacuum and remove the battery.

Reseat components:

• Remove and reinstall the dust container, ensuring it clicks firmly into place.
• Check that the filter cover is fully closed and latched.
• Inspect gaskets for twists or misalignment and correct them.

If the whistling persists and a crack is found in the housing, the affected housing part may need replacement.