Display shows F5; courtesy light does not operate correctly or stays on; door operation may still be normal.

Safety first: Disconnect power before changing bulbs or accessing the light socket.

• Step 1 – Check bulb type: Ensure you are using a bulb type and wattage approved by B&D (often LED or low‑wattage incandescent). Replace any high‑wattage or incompatible bulbs.
• Step 2 – Inspect socket: Look for signs of heat damage or corrosion in the light socket. Replace the socket if damaged.
• Step 3 – Test without bulb: Remove the bulb and restore power. If F5 clears and the opener operates normally, the issue is likely with the bulb or socket.
• Step 4 – Board replacement: If the light remains on constantly or F5 persists with no bulb installed, the light relay on the control board is likely stuck and the board should be replaced.