Display shows F1, vacuum refuses to start after filter cleaning

Safety: Remove the battery before opening the dust bin or filter housing.

• Check filter presence: Open the dust container and confirm the pre-motor filter is installed in the correct orientation. Many H-Free models will not run without this filter.
• Seat filter correctly: Ensure the filter is fully pushed into its recess and the cover is properly latched.
• Inspect filter housing: Look for broken plastic tabs or misaligned parts that might prevent the filter from engaging the sensor.
• Test operation: Refit the battery and try to start the vacuum. If F1 persists with a correctly installed filter, the filter sensor or microswitch may be faulty.
• Replace filter housing or sensor: If available as a spare, replace the Hoover H-Free filter housing or contact a service centre to replace the sensor assembly.