Nilfisk Premature Filter Loading

HEPA filter clogs very quickly and suction drops after short use

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Cyclone not separating dust effectively, Damaged cyclone cone or mesh, Missing pre-filter, Very fine dust environment (e.g., plaster dust)

Safety: Remove the battery before filter maintenance.

Verify pre-filter presence: Ensure the foam or fabric pre-filter is installed correctly before the HEPA filter.
Clean cyclone thoroughly: Remove the cyclone assembly and clean all internal surfaces and mesh to restore separation efficiency.
Avoid fine construction dust: Cordless vacuums are not designed for large amounts of plaster or cement dust; use appropriate equipment.
Replace damaged cyclone: If the cyclone cone is cracked or missing parts, replace the cyclone assembly.

Medium 3/5

Cyclone Assembly

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