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.
Now if there is nothing physically blocking the door and sensors you can check the safety.
Though this problem should be obvious it shouldn t be overlooked.
Depending on the brand.
Could also try disconnecting the door from the chain should be a pull cord that allows this.
First check the sensor lights.
Something blocking the door.
These obstructions can include anything like a garden tool a lawn chair or anything else in the way.
If your garage door won t close all the way the problem could be due to a blocked photo eye.
If there s something blocking the door from closing all the way a full close will be impossible.
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.
If something is blocking the safety beam then the garage door will not close.
The first step to take when your garage door won t close is to look around and do a visual check.
Then try closing the door manually.
What to do when your garage door won t close 1.
It could be that they are just barely aligned but the vibration from closing causes them to intermittently break the beam.
Try the wall.