Charging dock or handle display shows E12; battery will not charge beyond a low level; charger LED may stay green.
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: Unplug the charger and remove the battery before inspection.
- Allow to cool: If the battery feels warm, let it cool to room temperature for at least 1 hour before attempting to charge again.
- Clean contacts: Wipe the battery and dock contacts with a dry cloth to ensure good electrical and sensor contact.
- Try a different environment: Charge the vacuum in a cool, dry room away from direct sunlight or heaters.
If E12 continues to appear, the internal temperature sensor in the battery or charger is likely faulty. Replace the battery pack first; if the error remains, the charger or dock assembly may need replacement.
Repair Difficulty
Required Part
We may earn a commission from links on this page.