Wine cooler displays dE and beeps; door alarm active even when door is closed.

Safety: No internal electrical work is required for basic checks; unplug before accessing switch wiring.

Steps:

• Check for obstructions: Ensure no bottle, shelf, or rack is preventing the door from closing completely.
• Inspect gasket: Look for tears, warping, or debris on the door gasket. Clean with warm soapy water and dry. Replace if it does not seal against the cabinet.
• Test door switch: As described for E10, verify that the door switch or reed sensor changes state when the door is closed. Replace if faulty.
• Verify door magnet: Ensure the magnet embedded in the door (for reed switch systems) is present and aligned with the sensor location.
• Reset alarm: After correcting issues, close the door firmly and wait for the alarm to stop. If dE persists, inspect wiring and the main PCB door input circuit.