Sometimes the sensors will be in alignment and just as the door gets close to being shut it will vibrate enough to push one sensor off.
Garage door bouces back up.
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It goes partway down reverses direction and goes back up again.
Also something could be handing off the bottom of the door and is to far inward breaking the beam.
Incorrectly set limit switches may prevent your garage door from closing completely or opening all the way.
You should have them at the bottom on each side just to the inside.
This is almost always the result of a dirty.
Here s a rundown of some of the possible reasons this can be happening.
Watch this video to see how to fix it easily.
If these can t see each other when the door is almost shut it will send a signal to the garage door motor to open back up.
Your garage door sensor works by having two photo sensitive devices on either side of the garage door.
Your travel down setting needs to be adjusted.
A careless or rushed parking job can cause the car s bumper to block the sensor.
By wade shaddy updated december 19 2018 you push the button to close the garage door.
Possible reasons why your garage door hits the floor then goes back up as is the case with so many issues at the home there s no one reason why your garage door closes then opens.
One emmits a beam at the bottom and when the beam is broken the door goes up.
We design and engineer residential garage door openers commercial door operators and gate entry systems.
They can also cause the opener to reverse or pull back up when you attempt to close it which can seem like a malfunction or that someone else is using a garage door opener remote that is on the same frequency as yours.
If you find that your garage door is reversing before even hitting the floor then it could be possible that there is a problem with the close force setting.
Is your garage door popping or making a loud thud when you are opening or closing it.
If something gets in the way the door will go back up so check to see if one of them is bent inward.
Sorry for some reason i d.