This is a built in safety feature that is there in the event that something or someone gets in the way of the closing door.
Why does my garage door open immediately after closing.
Garage doors use radio frequencies to open and close.
There may also be loose wire connections inside the button housing itself.
When the logic board wears out it can cause your garage door to close then open and vice versa without explanation.
As these wires short against the housing the electrical impulse causes the door opener to activate.
This brain can wear out in time so you could need a replacement.
Get logic board replacement.
On most garage door systems the corresponding photo eyes will consist of one red light and one green light.
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.
My garage door has two sensors either of which can cause the door to open immediately after apparently closing.
In garage door operators made after 1993 there are required safety features that open the door during the close cycle when they detect something blocking the door.
This is almost always the result of a dirty or obstructed safety feature.
A force sensitive switch that detects if the motor torque is excessive typically tripped by incorrect adjustment or by leaving a solid object in the way of the descending door a car for instance.
Your logic board needs replaced.
With some non closing garage doors the problem is due to a misalignment issue between the two photo eyes.
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.
Scan the safety sensors.
You push the button to close the garage door.
Most garage door openers have an open and close limit control.
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.
If pushing the wall button and holding it does not make the door fully close then it is quite possible that your door is reversing itself because it is sensing undue resistance.
They are usually on the motor housing and you access them by opening a panel or removing the housing cover.
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.
When the two sides interact led lights activate on both ends.
This is done with the help of sensors in the motor and on each side of the opening near the floor and mounted on the tracks.
It goes partway down reverses direction and goes back up again.