This problem bugged me for several months.
My garage door opener won t close.
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.
Don t just assume that if the path is clear that the sensors are ok.
This is one of the sensors.
The operator receives no power.
This can happen if a track is accidentally struck by a heavy object and bent outward.
Most newer openers have a safety feature that makes the door reverse if it encounters an obstruction.
Does your garage door keep coming back up after it hits the floor.
Depending on the brand.
Garage door not closing all the way.
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.
When a roller on the garage door comes off one of the side tracks the opener won t be able to lift the door.
The photo eye is blocked dirty or misaligned.
The travel controls how far the door goes up and down.
Hopefully after you read this you won t have the same problem in the future.
If your garage door opens ok but won t close then it s possible the safety reversing sensors are not correctly aligned.
You just need to adjust the travel setting on your door opener.
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First check the sensor lights.
15 reasons why your garage door won t open or close 1.