Display shows E6 and the refrigerator may not respond correctly to door openings (lights or fans behave abnormally).

Safety: Disconnect power before removing any switch housings or display trims.

• 1. Identify the door switch type: Hisense refrigerators may use a plunger-style mechanical switch in the door frame or a magnetic reed sensor hidden in the cabinet.
• 2. Test the switch: For plunger switches, press and release the switch while the unit is powered (if safe) to see if the interior light turns on/off. If not, unplug the unit and test continuity across the switch terminals with a multimeter while pressing the plunger.
• 3. Check magnetic sensors: If there is no visible switch, the sensor may be behind a trim. Verify that the door magnet (often in the gasket or door edge) is present and not damaged. A missing magnet can cause constant "door open" detection.
• 4. Inspect wiring: On models with wiring through the hinge, inspect the harness for breaks from repeated door movement.
• 5. Replace faulty components: Install a new door switch or sensor if it fails continuity tests. If wiring and switches are good but E6 persists, the main PCB may be at fault.

Note: A faulty door switch can also cause fan and compressor to stop or run incorrectly, affecting cooling.