First and perhaps most commonly your safety sensors could be working improperly.
My garage door won t close.
If the door goes up but you can t make it go down you probably need to adjust the sensors.
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 craftsman garage door opener shown here has two set screws that control door travel.
This is a brief demonstration on how to adjust the safety sensors on your garage door.
If you re in the habit of leaving the garage door open a variety of things including.
Adjusting the travel setting on a garage door opener.
Depending on the brand.
Though this problem should be obvious it shouldn t be overlooked.
First check the sensor lights.
7 reasons for your garage door not closing all the way 1.
Adjust in small increments a half turn or less.
If anything interrupts this beam of light the garage door will not close and the ceiling light on the opener mechanism will flash as mentioned in the previous step.
Test after each adjustment.
How to fix a garage door that won t go all the way down safety sensors.
This is of course a safety feature to prevent the heavy garage door crushing anyone or anything that might be in the pathway of the door when it comes down.
Something blocking the door.