8
SEBO
Filter Blockage Detection Fault
Red LED 8 illuminated or flashing, machine indicates filter blockage despite new filters
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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
Incorrect filter installation, Non-genuine SEBO filter with wrong airflow characteristics, Blocked internal ducting, Faulty airflow sensor
How to Fix / Troubleshooting
Safety first: Unplug the SEBO carpet cleaner before servicing filters.
- Verify filter type: Confirm that both pre-motor and exhaust filters are genuine SEBO parts specified for your model. Incorrect filters can alter airflow and trigger false blockage warnings.
- Reinstall filters: Remove and reinstall each filter, ensuring they sit flat and the covers close fully. Misaligned filters can partially block airflow.
- Check internal ducts: With filters removed, inspect visible ducts and channels for dust build-up or foreign objects. Use a soft brush and vacuum to clean accessible areas.
- Sensor issue: If LED 8 remains on with correct, new filters and clear ducts, the airflow sensor or associated PCB may be faulty. This requires professional diagnosis and replacement.
Never operate the machine without filters; this can cause rapid motor wear and dust emission.
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Repair Difficulty
Medium
3/5
Required Part
SEBO Airflow Sensor
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