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.
Garage door opener does not close.
Your garage door has set limit switches that instruct the motor when to stop running both when it is opening and when it is closing.
The close limit switch may need adjusting.
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.
Depending on the brand.
There are a few things which can cause this.
Garage door won t close light flashes when the garage door does not close and the lights flashes it means the problem is with the safety sensor.
With the diagnostic feature on craftsman you can know what exactly the issue is.
This problem bugged me for several months.
Hopefully after you read this you won t have the same problem in the future.
The transmitters remotes will not work to close the garage door.
Don t just assume that if the path is clear that the sensors are ok.
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.
You will find that the door will only move an inch or so in the close direction and reverse.
When this happens your garage door will only close by holding down on the wall button or wall console until the door fully closes.
The majority of garage doors manufactured since the early 1990s are equipped with this safety feature.
If your garage door opens ok but won t close then it s possible the safety reversing sensors are not correctly aligned.
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.
If your garage door won t close all the way the problem could be due to a blocked photo eye.