Cordless vacuum displays E9 and battery LEDs flash rapidly; unit will not start.

Safety: If the battery feels hot, place it on a non-flammable surface away from direct sunlight and allow it to cool completely.

• Cooling period: Let the battery rest for at least 30–60 minutes, then try charging it again on the original Groupe SEB charger.
• Check charger and environment: Charge in a cool, dry place. Avoid covering the charger or battery while charging.
• Observe LED behavior: If the charger immediately shows an error or the battery remains unresponsive, the pack may be below safe voltage or the sensor may be faulty.
• Do not open the battery: Lithium-ion packs can be dangerous if tampered with. Do not puncture, crush, or disassemble.
• Resolution: Replace the battery pack with an original Groupe SEB replacement if it no longer accepts charge or repeatedly triggers E9.