Interior lights not working but refrigerator cools normally.

Safety: Unplug the refrigerator before replacing light modules.

• Check door switch: Press the switch manually; if the display or fans respond but lights do not, the switch is likely good.
• Inspect light module: Remove the light lens and check for discoloration or burn marks on the LED module.
• Replace module: Install a new LG-compatible LED light assembly.
• PCB issue: If multiple lights fail simultaneously and modules are good, the main PCB may have a failed LED driver and require replacement.