15 reasons why your garage door won t open or close 1.
Garage door will open but not close.
Don t just assume that if the path is clear that the sensors are ok.
Depending on the brand.
Sometimes a garage door won t open or close for one reason only the operator has.
One sends a beam of infra red light to the other.
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.
The operator receives no power.
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 garage door may attempt to go down but will come right back up and the overhead light on the garage door opener will blink.
This is one of the sensors.
Hopefully after you read this you won t have the same problem in the future.
If the beam is broken or the sensors are misaligned the sensor light s will go off and subsequently tell the operator not close the door.
If your garage door won t close all the way the problem could be due.
First check the sensor lights.
Check the door s electric eye.
This problem bugged me for several months.
The photo eye is blocked dirty or misaligned.
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This feature normally only fails when the door is already open and won t close but some models.