Overhead Door opener LED flashes 12 times and wall console does not function, but remotes may still work

Safety first: Turn off power before working on wall control wiring.

• 1. Inspect wall console: Check for physical damage, water intrusion, or stuck buttons. If the LED on the console is off or flickering, there may be a wiring or console fault.
• 2. Remove console from wall: Unscrew the console and gently pull it out. Verify that the wires are firmly attached to the correct terminals (often marked + and - on smart consoles).
• 3. Test wiring: Disconnect the console wires at the opener and at the console. Use a multimeter to check for shorts between conductors. Replace damaged cable.
• 4. Bypass with a jumper: At the opener, briefly short the wall button terminals with a small insulated jumper wire. If the door operates, the opener is fine and the console or its wiring is faulty.
• 5. Replace wall console: Install a new Overhead Door-compatible wall console, observing correct polarity. Reconnect wires and secure to the wall.
• 6. Restore power and test: Plug the opener back in and test all console functions (open/close, light, lock). If the 12-flash code persists with a new console and good wiring, the console circuit on the logic board may be defective.