If you release the door from the opener using the release cord see image below you should be able to lift the door to half open by hand and the door should stay at that point if you release it.
Garage door closes then opens a few inches.
My garage door opens about six inches and stops i press the my garage door opens about six inches and stops i press the button twice so it will stop going down and then is goes up another 6 inches or so.
The garage door can be operated manually by disconnecting the garage door opener from the door using the red pull cord.
If not there is a problem with the door.
Fast easy step by step process on how to properly program your garage door travel system.
As is the case with so many issues at the home there s no one reason why your garage door closes then opens.
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A broken torsion spring will also cause the door to slam closed instead of closing gently.
If the door is working properly it should be easy to lift by hand.
Disconnect the opener from the door itself like so and open it manually a few times.
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.
It s the part of the door mechanism that moves the chain that opens and closes the door.
You push the button to close the garage door.
If this isn t lit check for a tripped breaker in the main panel or a tripped gfci outlet.
If the door starts to open but won t move more than a few inches the torsion spring may be broken.
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.
Tighten and re align your eyes and you should be fine.
I d bet a small fortune that your eyes are getting bounced around while it is opening shutting and disrupting the process but you will want to be sure you don t have anything major going on by doing the above.
Your garage door is programmed to travel a certain distance before it closes.
Try to operate the garage door manually this helps you determine if the problem is related to the door or the motor.
There could be a bind or drag in the door mechanism or the springs may be damaged or need adjusting.
Turn the down limit switch screw counterclockwise one turn per every 3 inches of the garage door gap the.
Your travel down setting needs to be adjusted.