Vacuum runs for a few seconds then shuts off with E3 on the display

Safety first: Turn OFF the vacuum and remove the battery. Allow the unit to cool for at least 30 minutes before further inspection.

• Step 1 – Empty the dust bin: Remove the dust container and empty it completely. Wipe out fine dust with a dry cloth. Ensure the cyclone shroud holes are not caked with dust.
• Step 2 – Clean filters: Remove the pre‑motor filter and HEPA/post‑motor filter (if accessible). Tap gently over a trash can to remove loose dust. If the manual allows, rinse the pre‑motor filter with cold water only, then air‑dry for at least 24 hours until completely dry before reinstalling. Do not run the vacuum without filters unless the manual explicitly allows it for testing.
• Step 3 – Check for blockages: Detach the wand and nozzle. Look through the wand and main air path; remove any clogs. Inspect the nozzle neck and the inlet to the cyclone body.
• Step 4 – Inspect vents: Ensure the motor cooling vents on the main body are not blocked by dust buildup or being covered by your hand during use.
• Step 5 – Test again: Reassemble, reinstall the fully dry filters, and test the vacuum. Use normal mode first; if E3 does not reappear, the issue was likely restricted airflow.

When to call a technician: If E3 returns quickly with clean filters and clear airflow, the thermal sensor or motor windings may be failing. Continued use can permanently damage the motor; have the motor assembly and temperature sensor checked and replaced if needed.