Locate the photo eyes on each side of the garage door opening. The photo eyes mount on the outside of the door tracks towards the floor. They are usually black in color and will have small green or red LED lights.Click to see full answer. Similarly, what color should the lights be on garage door sensors?The lights on both the sending and receiving sensors will glow steadily when the wiring connections and alignment are correct. The amber light on the sending sensor will glow regardless of alignment or obstruction.Furthermore, should both lights be green on garage door sensors? Look at the sensors, there should be a light on each sensor. If not one of them has probably been bumped or kicked. They should both be green. Just eye them up to look at each other until the lights both come on strong and steady. Likewise, how do I know if my garage door sensor is bad? If the door goes up but goes down only when you hold down the wall switch, check to see that the safety sensors are in alignment. The small light on each sensor should be lit up when nothing is between them. Door sensors do go bad, so if no light is showing at all, you may need to replace them.What color should Chamberlain sensors be?If you have found nothing in the way, look at both sensor eyes, both should have a solid LED light on. For Liftmaster/Chamberlain products one eye will have an amber colored light which is the sending eye and if it is wired properly and the opener is plugged in will always be on, even the eyes are not making contact.
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