Refrigerator interior light not working but unit cools normally.

Safety first: Unplug the refrigerator before replacing light modules.

Check door switch:

• Press the door switch by hand and see if any lights flicker on. If not, test or replace the Insignia door switch as described in the E6 scenario.

• Replace LED module: If only one light is out, remove its lens, disconnect the module, and install a new Insignia-compatible LED module.
• Check wiring: Ensure connectors are fully seated and not corroded.

Note: If all lights are out and switches and modules are good, the main control board's light circuit may be faulty and require replacement.