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.
Nothing blocking garage door still wont close.
The sensors may not be aligned properly.
Try the wall.
Depending on the brand.
What to do when your garage door won t close 1.
Could also try disconnecting the door from the chain should be a pull cord that allows this.
First check the sensor lights.
Now if your garage door still won t go down after you ve made sure the sensors are properly aligned and there s no obstructions you ll want to take a damp cloth and wipe down the lenses of the sensors.
The majority of garage doors manufactured since the early 1990s are equipped with this safety feature.
The first step to take when your garage door won t close is to look around and do a visual check.
Now if there is nothing physically blocking the door and sensors you can check the safety.
If something is blocking the safety beam then the garage door will not close.
Then try closing the door manually.
One or more of these reasons is likely responsible for your garage door closing partially but not all the way.
Though this problem should be obvious it shouldn t be overlooked.
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.
These obstructions can include anything like a garden tool a lawn chair or anything else in the way.
If there s something blocking the door from closing all the way a full close will be impossible.