Display shows E7 and the interior light or fan may behave erratically.

Safety: Unplug the wine cooler before working around the door frame or control wiring.

Steps to address E7:

• Check door closure: Ensure the door closes fully and the gasket is not obstructed. A partially open door can cause the controller to misread the door status.
• Locate the door switch: On many Whynter models, the door sensor is a magnetic reed switch embedded in the cabinet frame, with a corresponding magnet in the door.
• Test the switch: With the unit unplugged, remove the inner trim near the switch location and expose the switch. Use a multimeter to check continuity while moving a magnet near the switch. It should open/close reliably.
• Inspect wiring: Follow the switch wires back to the control board. Look for pinched or broken wires, especially near hinge areas.
• Adjust or replace magnet: If the magnet in the door is loose or missing, re-secure or replace it so it aligns directly with the reed switch when the door is closed.
• Replace faulty switch: Install a Whynter-compatible door switch if the original does not change state properly.

After repair: Restore power and confirm that the interior light and fans respond correctly to door opening/closing and that E7 is cleared.