Interior lights not working even when the door is open; display may still function.

Safety first: Disconnect power before working on lights or switches.

Step 1 – Check door switch

• Press the door switch manually; see if lights flicker or come on.
• If not, test or replace the door switch.

Step 2 – Inspect LED modules

• Remove the light cover and check the LED module for discoloration or burn marks.
• Replace the module with a Sub‑Zero compatible LED if suspect.

Step 3 – Wiring and control

• Reseat light wiring connectors at the module and control board.
• If lights still do not work, the light driver on the control board may be faulty and require board replacement.