Interior light stays on when the door is closed, causing heat and possible melting near the light.

Safety: Unplug the refrigerator before working on the light or switch.

Steps:

• 1. Verify symptom: Close the door slowly and look for light leakage around the gasket. If you can see light, the switch is not being actuated.
• 2. Check door alignment: Adjust hinges so the door closes squarely and presses the switch.
• 3. Test door switch: Remove and test the door switch for proper operation with a multimeter. Replace if faulty.
• 4. Control board: If the switch is good but the light remains on, the control board's light relay may be stuck closed and the board may need replacement.

Warning: A light that stays on can overheat plastic parts; address this issue promptly.