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.
Garage door opener does not close.
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.
Garage door won t close all the way if the garage door opens correctly but fails to close completely there may be one of three common causes.
With the diagnostic feature on craftsman you can know what exactly the issue is.
If your garage door opens ok but won t close then it s possible the safety reversing sensors are not correctly aligned.
Hopefully after you read this you won t have the same problem in the future.
You will find that the door will only move an inch or so in the close direction and reverse.
The close limit switch may need adjusting.
Don t just assume that if the path is clear that the sensors are ok.
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.
Depending on the brand.
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When this happens your garage door will only close by holding down on the wall button or wall console until the door fully closes.
If your garage door won t close all the way the problem could be due to a blocked photo eye.
First check the sensor lights.
The transmitters remotes will not work to close the garage door.
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.
There are a few things which can cause this.
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.