Audible alarm beeping periodically with no visible error code.

Safety: No internal work is required for basic checks; unplug only if accessing components.

Steps:

• Confirm door closure: Ensure the door is fully closed and not obstructed by shelves or bottles.
• Allow recovery: If many warm bottles were recently added, allow several hours for temperature to recover; the alarm should stop.
• Check door switch: Verify that interior lights turn off when the door is closed. Replace the door switch or magnet if faulty.
• Alarm reset: Use the control panel to silence or reset the alarm per the user manual. If alarms persist without cause, the control board or sensor may be faulty and require service.