The symptom of this is a garage door that is in constant motion opening fully then immediately descending only to start the same cycle again.
Garage door close and open again.
Garage doors use radio frequencies to open and close.
This is almost always the result of a dirty or obstructed safety feature.
The button can easily get dirty and stuck in the pushed position.
Clean the button as well as the connections in the housing if this is the case.
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 the garage door does not close completely or begins to close and then opens back up again the down limit switch needs.
As these wires short against the housing the electrical impulse causes the door opener to activate.
The garage door will automatically go in reverse whenever it hits an obstruction such as the driveway or ground.
Close the garage door with the opener and watch it closely as it closes.
This brain can wear out in time so you could need a replacement.
Before you break out your toolbox or call a professional for help take a look at your garage door s threshold.
When the logic board wears out it can cause your garage door to close then open and vice versa without explanation.
To troubleshoot the garage door opener button make sure it s clean and free of debris.
Below are three reasons why your garage door opens on its own and some quick fixes you can try.
Get logic board replacement.
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.
Turn the down limit switch screw clockwise one turn with a flat blade screwdriver if the garage door closes and then begins to open back up.
This will cause the door to open and close until the button becomes unstuck.
You push the button to close the garage door.