Manual for Robot Vacuum S12

Manual for Robot Vacuum S12

Brand: Xiaomi

Category: Robot Vacuum

Document Type: Manual

Language: EN

Available Languages: EN , ES

Uploaded: April 20, 2026, 7:55 p.m.

Warranty Information

Xiaomi warrants the product to be free from defects in materials and workmanship under normal use for the Warranty Period.

Before Use

  1. Remove the protective strips from the robot vacuum.
  2. Install the side brush by pressing until it clicks.
  3. Remove protective film from the charging dock, place it against a wall, and connect to power. Ensure at least 0.5m clearance on the sides and 1.5m in front.
  4. Charge the robot vacuum by placing it on the charging dock. A full charge is recommended before first use.

Start Vacuuming & Mopping

  1. Fill the 2-in-1 dust compartment with clean water and securely install it onto the robot.
  2. Dampen and wring out the mop pad, then attach it to the mop pad holder. Slide the holder onto the robot until it clicks.
  3. Press the power button to start vacuuming and mopping.

Care & Maintenance

  • Regularly clean the 2-in-1 dust compartment, filter, brushes, and sensors.
  • Wash and air dry the mop pad after each use.

Troubleshooting and error codes

Issues Possible Causes and Solutions
The robot vacuum does not turn on. The battery level is low. Fully recharge the robot vacuum, then try again. The ambient temperature is too low (below 0°C) or too high (above 35°C).
The robot vacuum does not start cleaning. The battery level is low. Fully recharge the robot vacuum, then try again.
The robot vacuum does not resume cleanup. Make sure the robot vacuum is not set to DND mode, which will prevent the robot vacuum from resuming cleanup. The robot vacuum does not resume cleaning when it is manually returned to the dock to charge or placed onto the charging dock.
The robot vacuum does not return to the charging dock. There are too many obstructions around the charging dock. Place the charging dock in a more open area. The robot vacuum is too far away from the charging dock. Move it closer to the charging dock and try again.
The robot vacuum does not charge. Make sure there is enough open space around the charging dock and its charging contacts are free of dust and other debris. The ambient temperature is too low (below 0°C) or too high (above 35°C).
The robot vacuum has an abnormal behavior. Turn the robot vacuum off and then restart it.
The robot vacuum does not perform scheduled cleanups. Make sure the robot vacuum is connected to the network; otherwise, it cannot synchronize time and perform the scheduled cleanups. Make sure the robot vacuum is not set to DND mode. The DND mode will prevent the robot vacuum from performing scheduled cleanups.
The robot vacuum keeps going offline. Make sure the robot vacuum is connected to the network and stays in the range of Wi-Fi at all times.
The robot vacuum makes strange noises while cleaning. A foreign object might be caught in the brush, side brush, or the left/right wheel. Turn off the robot vacuum and remove any debris.
The robot vacuum no longer cleans efficiently, or leaves dust behind. The 2-in-1 dust compartment with water tank is full. Please clean it. The filter is blocked, please clean the filter. A foreign object has been caught in the brush. Please clean the brush.
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