Garage door opener does not respond at all; no lights, no sounds, no display.

Safety first: Use caution when working around electrical circuits. If you are not comfortable, contact a qualified electrician.

• 1. Check other devices: Plug a lamp or tester into the same outlet to confirm power is present. If dead, reset the breaker or GFCI.
• 2. Inspect power cord: Look for cuts, abrasions, or burn marks on the opener’s cord. Replace the cord set if damaged.
• 3. Verify plug connection: Ensure the opener’s plug is fully seated in the outlet and not loose.
• 4. Check internal fuse (if equipped): Unplug the opener, remove the cover, and locate any inline or board-mounted fuse. Replace only with the same type and rating.
• 5. If still dead: If the outlet and cord are good and any fuse is intact, the Linear control board’s power supply is likely failed and the board should be replaced.