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Garage door sensor light on one is green the other yellow. When they are lined up one stays yellow and one is green. When I point the yellow sensor away from the other one the green goes off. Do you think I have a bad sensor?
Re: Garage door sensor light on one is green the other...
They are doing what they are designed to do. To work properly they must be pointed at one another and to tell when they are aligned the light on the receiving unit turns on.
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The safety beam portion of the garage door opener is set up to stop the door from closing if something (car, person, etc,.) is in the doorway.
When the door is open - if you press the hard wired push button (not the wireless remote) the door will either close until shut completely, or begin to close and reverse direction as soon as you let go of the button. When this happens, it *usually* means that a sensor is blocked - and reversing the door motor. If you try yhtis with the remote the door may not move at all or just bump down and stop.
You should re-align the sensors as described in the link below. Good luck!
The sensors are seeing something directly in line with the beam between the 2 sensors, or your sensors are not aligned so they point directly at each other.
Hi. The sensor with the yellow light is telling you that it is miss-aligned, Usually it only takes getting bumped to knock them out of alignment. I would slowly turn or adjust the positioning of the sensor. The one with the yellow light should turn green when it is all the way in line so that the beam is completing it's path.
It's out of adjustment, so the sensor is looking at it like there is an object blocking the door from closing. It's called the obstruction sensor. It's there as a safety feature, so that the door doesn't come down and smash anything in the opening.
What usually happens is a sensor gets bumped so that they no longer are pointed at one another. They must be for the light on the second sensor to come on. Tweak them and see if you can get the light to come on. If you can't you either have bad wiring going to that sensor or the sensor itself has quit working.
you have to keep moving the sensors until the light stays on steady green not blinking. one is a sending the other is the receiver. If the lights are on steady green they should show an unbroken line of sight. I have a smiliar problem and have the sensors duct taped together with the green light on constantly and it still won't go down. but firts try and get the green lights to stay on...hope this helps don
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