Error twelve (12) means your s Series is stuck over an edge, is on a threshold, or is on a dark surface.
Move Roomba® to a new location, then press CLEAN to restart. You may need to use a Virtual Wall® to block off problem areas. If this does not resolve the issue, the Floor Tracking Sensor or Cliff Sensors may be dirty. Wipe the floor tracking sensor and cliff sensors with a clean, dry microfiber or soft cotton cloth.
If the message persists, please contact iRobot Customer Care.
For expedited service, please have the following ready:
- Your robot charged and with you.
- Your robot's Serial number.
- For warranty claims: Proof of purchase (receipt or invoice for purchase from an authorized retailer).