This is a safety feature that has been added to garage door openers to help prevent the door from closing on a car pet or even a child.
Automatic garage door keeps opening after closing.
But one of the more perplexing issues is when the door goes up and down by itself with no help from you.
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.
Open the garage door and watch it closely as it opens.
Another easy way to fix a garage door that opens by itself is by checking the remote opener.
You push the button to close the garage door.
Garage door reverses before hitting the floor.
It can seem quite ghostly having your garage door operate with a mind of its own.
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.
It goes partway down reverses direction and goes back up again.
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.
Two possible problems can lead to a garage door reversing before it even touches the floor.
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.
The photo eyes send an infrared beam across the bottom of your garage door opening if that beam is broken the door will reverse.
They are usually on the motor housing and you access them by opening a panel or removing the housing cover.
How to fix a garage door that keeps reversing.
If the remote opener is dirty or the batteries are failing it may cause the door to open on its own.
This brain can wear out in time so you could need a replacement.
Most garage door openers have an open and close limit control.
Get logic board replacement.
If the door stops short of closing lengthen the close limit by turning the control knob in the direction indicated usually counterclockwise.
Check the remote opener.
When the garage door opens about halfway or 5 feet from the ground and stops the up limit switch needs to be adjusted.
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 when the door reverses before it even hits the floor this is often because the close force.