This is almost always the result of a dirty or obstructed safety feature.
Garage door closes further everyday.
Check your garage floor and the area surrounding it for any objects or debris that might be causing the improper close.
As a result the door may fall too fast as it closes.
If the garage door does not close completely or begins to close and then opens back up again the down limit switch needs.
Adjust the lift cable.
Close the garage door with the opener and watch it closely as it closes.
Other devices also use the same frequencies.
Get logic board replacement.
Brace the open door.
If you have things stored near the garage doors try storing further away from the door.
As a result they are unable to balance out the weight of the door as it opens and closes.
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.
Your logic board needs replaced.
Over time the springs of the garage door can get worn out or break.
Look at the photo eyes themselves if there are cobwebs or if there is dust on the lenses the eyes will sense this and cause the door reverse.
Other times it may be a leaf hanging from the bottom of your garage door.
You push the button to close the garage door.
When the logic board wears out it can cause your garage door to close then open and vice versa without explanation.
Whether you re using the passcode entry the buttons inside the garage or your remote opener the openers and the garage door itself must be on the same frequency.
You may also want to check the tracks and the garage door itself for the culprit.
Move the spring within the track hanger.
Sometimes there could be a box or a garbage can sitting too close to the eyes.
If your garage door won t close when it s cold out there could be some condensation on the lenses of the sensors.
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.
Your garage door s logic board is the brain of your garage door opener.
If there s something blocking the door from closing all the way a full close will be impossible.
If this is the case with your garage door ensure that you get the springs replaced.
Garage doors use radio frequencies to open and close.
This brain can wear out in time so you could need a replacement.