Though this problem should be obvious it shouldn t be overlooked.
Garage door opener wont close even though nothing in way.
If your garage door opens ok but won t close then it s possible the safety reversing sensors are not correctly aligned.
Clutter or obstructions that block the sensor are the first problems to look for if your door won t close or in extreme cases open at all.
The sensors may not be aligned properly.
Hopefully after you read this you won t have the same problem in the future.
The door won t close all the way if the bolt is too high on the track.
Depending on the brand.
Then try closing the door manually.
This problem bugged me for several months.
First check the sensor lights.
If your garage door won t close all the way the problem could be due to a blocked photo eye.
Step 4 turn the close force dial in small increments until the garage door reaches the ground when you hit the close button on the remote.
Something blocking the door.
The photo eye components consist of two pieces that align face to face across each side of the garage door roughly four feet above the ground.
Don t just assume that if the path is clear that the sensors are ok.
If there s something blocking the door from closing all the way a full close will be impossible.
Could also try disconnecting the door from the chain should be a pull cord that allows this.
It could be that they are just barely aligned but the vibration from closing causes them to intermittently break the beam.