Garage door opens normally but will not close using remote or wall button unless the safety sensor is held or bypassed.

Safety first: Never permanently bypass safety sensors; they are required for safe operation.

Steps to repair:

• Check sensor LEDs: One sensor should show a solid green LED and the other a solid amber (or similar). If one is off or flickering, alignment or power is an issue.
• Realign sensors: Loosen the wing nuts and adjust the sensors until both LEDs are solid. Tighten while maintaining alignment.
• Shield from sunlight: If direct sunlight hits a sensor, install a small shade or move the sensor slightly back on the bracket.
• Replace faulty sensors: If an LED will not light even with correct wiring, replace the Motorlift safety sensor pair.