When the device detects any person or object in the path of a closing garage door it signals the motor to stop the downward action and switch the motion into reverse to stop the obstacle being crushed.
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Check the manual for your specific model number before ordering to ensure compatibility.
It may be that your safety sensor is being blinded by the light of the sun.
If you are in a hurry and need to get your garage door closed right away stand in such a way that you cast a shadow over your garage door s beam sensor but of course don t block the beam itself just the sunlight that is shining on it and then press your remote control so that your door will close.
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How a garage door sensor works.
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Knowing how a garage door sensor works allows a homeowner to be watchful for what might affect it.
If your garage door faces south and the door will not go down.