U01 or similar code appears and the cooker will not start; may be accompanied by a beeping pattern.

Safety first: Unplug the cooker and allow it to cool completely.

• Cool-down period: Leave the cooker unplugged for at least 30–60 minutes to allow internal components to cool.
• Ventilation: Ensure the cooker is used on an open countertop with good airflow. Do not operate it inside cabinets or tight spaces.
• Restart: After cooling, plug in and try a low-heat program first (e.g., Keep Warm) to verify operation.
• Usage pattern: Avoid running back-to-back high-pressure or high-temperature cycles without a short cool-down period.