Alarm beeping and door-open indicator active even when doors are fully closed.

Safety first: Unplug the refrigerator before working on door sensors or wiring.

Steps:

• 1. Check door closure: Ensure nothing is obstructing the door and that shelves or containers are not preventing full closure.
• 2. Inspect gasket and hinges: Adjust hinges and replace gaskets if the door does not sit flush.
• 3. Test sensor: For mechanical switches, press manually and observe if the alarm stops (after restoring power briefly). For reed sensors, move a magnet near the sensor location to see if the alarm clears.
• 4. Replace faulty components: Install a new door switch, reed sensor, or magnet as needed.
• 5. Wiring check: If the problem persists, inspect wiring from the sensor to the main PCB for continuity and damage.

Note: Some models allow temporary muting of the alarm via the control panel, but the underlying fault should still be corrected.