Door opens normally but will not close from remote or keypad; only closes from wall button.

Safety: Do not operate the door automatically until sensors are reliable.

• 1. Observe sensors during close: Watch the LEDs while commanding a close. If one flickers, tighten the bracket and realign.
• 2. Replace weak sensor: If a sensor LED is dim or intermittent despite good wiring, replace the sensor pair.
• 3. Secure wiring: Ensure sensor wires are not being tugged or moved when the door operates.