The garage door opener has several safety sensors photo eyes in place to prevent damage or injury should something obstruct the door as it is closing.
Trouble with garage door binding and reversing.
In order to fix this you ll want to make small changes to the close limit setting until the door opener knows to stop once the door has reached the floor.
Requiring garage door operators to be equipped with a secondary reversing system which most operators have in the form of photo eyes.
Garage door openers have an adjustment screw that controls the closing force the pressure with which a door is allowed to descend before the motor switches off.
This is almost always the result of a dirty or obstructed safety feature.
Two possible problems can lead to a garage door reversing before it even touches the floor.
If your garage door is closing fully and then reversing to open again then it may be due to a problem with the close limit switch.
If you garage door is lowering then reversing back to the open position there could be something obstructing the sensors.
Usually this is a sure sign that there is an issue with the garage door s photo eye system.
It goes partway down reverses direction and goes back up again.
You push the button to close the garage door.