Cordless vacuum shows E8 and suction is very weak or intermittent.
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.
Possible Causes
How to Fix / Troubleshooting
Safety first: Remove the battery pack before cleaning filters or opening the cyclone assembly.
Restore normal airflow:
- Empty bin and clean cyclone: Remove the dust container, empty it, and brush dust off the cyclone shroud and internal cones.
- Clean all filters: Remove pre‑motor and HEPA filters. Tap off dust and rinse washable elements in lukewarm water if allowed. Air‑dry for 24 hours before refitting.
- Check for cracks: Inspect the dust bin and cyclone housing for cracks or gaps that could cause air leaks and confuse the airflow sensor.
Sensor area:
- Some Salter models have a small port or channel near the cyclone that feeds the airflow sensor. Gently clear any dust from this area with a soft brush or compressed air (short bursts only).
If E8 persists with clean filters and intact housings, the airflow sensor or associated circuitry on the main PCB is likely faulty. Replacement of the main control PCB is usually required.