If the door reverses part way down and you are sure there is no obstruction or binding increase the closing force a small amount and try it again.
Garage door opens part way then stops.
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.
The simple stuff if the garage door connected to your liftmaster opener only opens part of the way or it begins to open but then reverses check the track and the surrounding area for any objects.
A garage door that only opens halfway becomes a nuisance for many reasons.
Doing this can save you some amount of cash.
Your automatic garage door comes with a limit setting that limits the amount of force it is allowed to exert in either opening or closing.
You might need to consider replacing it if your door is not working properly or you may purchase a new opener.
A faulty logic board could also be a reason your garage door opens then stops.
Some older garage door openers do not have nicely labeled adjustment screws for force and travel limits.
When the garage door ascends correctly but stops short it is fully open these are the likely causes.
If your garage door opens and suddenly stops it might be because of your logic board.
This requires a simple turn with.
If this setting is improper it can cause your door to stop midway thinking its job is done.
The up limit switch may need to be moved toward the motor unit.
On the other hand if your opener is fairly new you may want to call a professional.
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.
This switch is usually a simply touch lever mounted on the end of the track near the motor unit and if it is too far away the motor will stop the door before it fully opens.
This board electrically controls your garage door and will fail if it shorts out.
Over time sometimes through natural settling this setting can get out of appropriate caliber.