Filter warning icon illuminated; suction reduced

Safety first: Remove the battery and wear respiratory protection when handling dusty filters.

• Empty or replace pre-filter: If your Hilti cordless vacuum uses a fleece bag or pre-filter, remove and empty or replace it when full.
• Clean main filter: Remove the main filter and gently tap it outdoors to remove dust. For HEPA or fine filters, follow Hilti’s cleaning instructions; do not wash unless specified.
• Check filter seating: Ensure the filter is installed in the correct orientation and fully seated against its gasket.
• Use correct filter: Install only Hilti-approved filters designed for your model to maintain proper airflow and sensor function.
• Reset indicator (if applicable): Some models reset the filter warning automatically after power cycling; others may require a button press as per the user manual.