Display shows dO or similar door open alarm, and interior lights stay on or fans won't run.

Safety: No major hazard, but disconnect power if removing switch panels.

• 1. Verify closure: Ensure nothing is preventing the doors from sealing completely. Adjust leveling feet to tilt the fridge slightly backward so doors close under their own weight.
• 2. Inspect the switch: For mechanical switches, press the plunger repeatedly. If it sticks or feels broken, replace it.
• 3. Check the magnet: If the fridge uses a magnetic reed switch (hidden), ensure the magnet inside the top of the door or gasket hasn't fallen out or lost magnetism.