If your garage door isn’t closing all the way, it could be due to a misalignment of the sensors. To fix this, you can check the alignment of the sensors. First, open the garage door and locate the sensor on each side of the door. There should be a red and green light on each sensor. If the lights are blinking or off, it means that the sensor is misaligned. To fix this, you can adjust the alignment of the sensor by following these steps:
1) Close the garage door.
2) Look at where the red light is on the sensor.
3) Move the sensor until the red light is in line with where you want it to be.
4) Hold the sensor in place and re-open the garage door.
5) The green light on the sensor should now be in line with where you want it to be.
6) Tape the sensor in place.
7) Repeat these steps for the other sensor.
If your sensors are properly aligned, but your garage door is still not closing all the way, If your sensors are properly aligned, but your garage door is still not closing all the way, you may need a new spring. To find a qualified technician to do this, you can search for “garage door repair” in your area.