Door opens but will not close from remote; must hold wall button continuously; E17 or flashing sensor indicator

Safety first: Never bypass or tape down the wall button to force the door closed. Fix the safety system instead.

• Check sensor LEDs: Verify both Skylink safety sensors have solid LEDs when the door is open. If one is off or blinking, realign or replace sensors.
• Verify wiring polarity: At the opener, ensure the sensor wires are connected to the correct terminals and polarity as specified by Skylink. Reverse them if wired incorrectly.
• Test close from remote: Once sensors are aligned and LEDs are solid, test closing from the remote. The requirement to hold the wall button should disappear.
• Replace sensors: If LEDs will not light despite correct wiring and alignment, replace the Skylink safety sensor pair.