E07
Nilfisk Airflow Sensor Fault or Severe Restriction

LED display shows a fan or airflow icon with an error; suction is very weak

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Safety Warning

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.

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Possible Causes

Blocked cyclone shroud, Collapsed internal filter, Faulty airflow/pressure sensor on main PCB, Cracked or leaking cyclone housing

How to Fix / Troubleshooting

Safety: Remove the battery and dust bin before inspection.

  • Inspect cyclone shroud: Remove the bin and look at the metal or plastic mesh around the cyclone. Brush off fine dust and lint.
  • Check filter seating: Ensure the pre-motor filter is correctly seated and not folded or collapsed.
  • Look for cracks: Examine the cyclone housing and bin seals for cracks or gaps that could affect airflow measurement.
  • Reassemble and test: With clean filters and a properly seated bin, reinstall the battery and test suction.
  • If error persists with clear airflow: The airflow sensor or its wiring on the main PCB may be defective. This requires PCB or sensor replacement by a service center.
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Repair Difficulty

Hard 4/5

Required Part

Cyclone Assembly
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