Interior lights stay on when doors are closed, causing heat and condensation.

Safety first: Unplug the refrigerator before working on switches.

Steps to check:

• Check switch action: Press each door switch manually and verify lights turn off. Replace any switch that fails.
• Adjust doors: Ensure doors close fully and contact the switches.
• Control issue: If switches are good but lights remain on, the main control board may be faulty and require professional replacement.