E19 error: The unit indicates the door or bin is open even when it is closed.

Safety first: Disconnect power before working around door switches.

• Inspect door alignment: Ensure the ice bin door closes fully and is not obstructed by ice or foreign objects.
• Check switch or magnet: Locate the door switch or magnetic sensor. Verify that the actuator or magnet lines up correctly when the door is closed. Adjust mounting screws if needed.
• Test switch: Use a multimeter to check the continuity of the door switch while opening and closing the door. Replace the switch if it does not change state reliably.
• Inspect wiring: Follow the switch wires to the control board, checking for breaks or loose connectors. Repair as necessary.
• Reset and test: Restore power and confirm that the E19 error clears when the door is closed and that the unit resumes operation.