Alarm beeping without any visible error code; temperature appears normal

Safety first: Unplug the freezer before removing the control panel.

Steps:

• Silence alarm: Press the alarm reset button according to the manual. If it continues, proceed.
• Power reset: Unplug for 5 minutes and reconnect.
• Check door switch: Ensure the door switch operates correctly and is not intermittently opening.
• Inspect control panel: Look for stuck buttons or moisture. Dry and clean as needed.
• If alarm persists: Replace the main control board or user interface board, depending on where the buzzer is located.