If you re craftsman chamberlain etc garage door opener is closing and then opening up its likely a common problem related to the stop limit mechanism.
Sears garage door closes then opens.
It has operated flawlessly until a couple of weeks ago.
You have to keep adjusting till the garage door opens or closes fully without reversing.
There will be two on the chain one for the opening limit and another for the closing limit.
When the logic board wears out it can cause your garage door to close then open and vice versa without explanation.
If that doesn t fix the problem check the wiring between the motor unit and the wall control.
This is almost always the result of a dirty or obstructed safety feature.
Radio interference from other devices such as photoelectric sensors for security lights can prevent the garage door opener from responding to the signal from the remote.
The problem is often intermittent.
I have a model 139 53990d s n xxxxxxxxxxx sears garage door opener installed may 2006.
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.
Erase all codes in your remote and then reprogram it.
It goes partway down reverses direction and goes back up again.
It is important to perform the safety reversing test after adjusting the force settings.
These may be metal plates screwed on to the chain plastic snap ons dojiggies with flexible metal arms attached etc.
This brain can wear out in time so you could need a replacement.
S n xxxxxxxxxxx sears garage door.
You push the button to close the garage door.
When your garage door opens or closes when you haven t triggered the remote one possible cause is that a neighbor s remote was programmed at the same time as yours.
Your garage door s logic board is the brain of your garage door opener.
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.
Operate your garage door opener.
Else repeat the process once again.
My garage door starts to close and then opens back up as if it is hitting something.