Display shows H2 and the cooker stops heating mid-cycle.

Safety first: Unplug and allow the unit to cool completely before inspection.

• Improve ventilation: Move the cooker to an open area with good airflow. Ensure vents are not blocked by walls, curtains, or other appliances.
• Clean vents and fan: Use a soft brush or compressed air to remove dust from vents. If your model has a fan, check that it spins freely and is not clogged.
• Use appropriate modes: Avoid running high-heat modes (e.g., Fry) for longer than recommended. Alternate with lower-heat programs if needed.
• Internal sensor check (advanced): Some models have a PCB-mounted temperature sensor. Inspect the board for dust buildup or poor contact with any attached heatsinks.
• Replace fan or sensor: If the fan is not working or the PCB sensor is faulty, replace the affected component with a Xiaomi-compatible part.
• Service if unresolved: Persistent H2 after cleaning and component replacement suggests a control board design fault or damage; contact service.