Garage door opener light flashes but door will not close from remote; will close only when holding wall button continuously.

Safety first: Do not continue to use constant‑pressure override as a normal mode; restore sensor function.

• Check sensor LEDs: Ensure both Marantec sensors show the correct LED status (usually solid when aligned). If one is off or blinking, adjust alignment.
• Clear beam path: Remove any objects, cobwebs, or debris between sensors.
• Shield from sunlight: If direct sun hits the receiver, angle the sensors slightly or add a small shade.
• Repair wiring: Fix any cuts or loose connections. Replace the sensor pair if LEDs do not light with proper wiring.