H1 or HI displayed and the cabinet temperature is significantly higher than the setpoint.

Safety: No internal repair is required for the alarm itself, but always unplug the unit before removing panels for inspection.

• Check door closure: Ensure the door is fully closed and the gasket is sealing all around. Look for items or shelves preventing proper closure.
• Allow stabilization: If you recently loaded many warm bottles, allow 12–24 hours for the temperature to stabilize. Avoid opening the door frequently during this period.
• Verify installation: Confirm that the cooler has adequate ventilation clearances and is not installed next to heat sources such as ovens or direct sunlight.
• Monitor temperature: Use an independent thermometer inside the cabinet to verify actual temperature versus display. If the temperature remains high despite continuous running, investigate cooling system issues (condenser cleaning, fan operation, etc.).
• Silence alarm: Most Aobosi models allow muting the alarm via a button on the control panel while you correct the cause.