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.
Garage door won t go down nothing in the way.
If there s something blocking the door from closing all the way a full close will be impossible.
One or more of these reasons is likely responsible for your garage door closing partially but not all the way.
Can you hold the button down to make the door go down.
Something is blocking the beam either the sender or receiver is misaligned kicked.
These obstructions can include anything like a garden tool a lawn chair or anything else in the way.
Overtime these lenses can become coated with grime dirt and even sawdust.
When you pressed the button did the opener lights blink at you.
Depending on the brand.
First check the sensor lights.
Something blocking the door.
When the door won t go down automatically.
Most common problems when a door won t go down.
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.