Alarm beeps periodically even though the temperature appears normal and the door is closed.

Safety: Unplug the unit before accessing the door switch or control board.

• Check door closure: Ensure the door is fully closed and not held open by shelves or bottles.
• Test door sensor: If a magnetic reed switch is used, move a magnet near the sensor area to see if the alarm stops. Replace the sensor if it does not reliably detect the door.
• Inspect sensor wiring: Check the door switch wires and cabinet temperature sensor connections for looseness or damage.
• Power reset: Unplug for 10 minutes to reset the control. If the alarm persists, the control board or sensor may need replacement.