One sends a beam of infra red light to the other.
Garage door will open but not close with remote.
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This is one of the sensors.
Hopefully after you read this you won t have the same problem in the future.
This also disables any remotes or wireless keypads.
Depending on the brand.
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.
I read about the led bulbs causing some sort of interference and remembered that was what i had in my opener.
The issue could all boil down to the simple goof of a disconnected motor.
First check the sensor lights.
If your garage door opens ok but won t close then it s possible the safety reversing sensors are not correctly aligned.
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.
To reprogram your garage door remote locate then press your opener s learn button.
This problem bugged me for several months.
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.
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.
Try using your remote to open or close your door to determine if the reprogramming was successful.