When you tried to lift your garage door after you disconnected it was it was too heavy to lift.
Garage door opens up partially.
If so this means the springs are probable broken.
Garage doors use radio frequencies to open and close.
As these wires short against the housing the electrical impulse causes the door opener to activate.
Broken springs can cause a garage door to open and then quickly shut.
There may also be loose wire connections inside the button housing itself.
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.
The logic board receives and responds signals to any remote.
The symptom of this is a garage door that is in constant motion opening fully then immediately descending only to start the same cycle again.
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 that may obstruct.
This is related to the up limit switch.
T his is a pretty uncommon problem but one that can happen after you ve first installed your garage door opener.
If your garage door still only opens partially then try adjusting the travel and force settings a little more.
If your garage door opens and suddenly stops it might be because of your logic board.
Below are three reasons why your garage door opens on its own and some quick fixes you can try.
Ever notice how it is easier to pull a wagon over a curb than it is to push it.
Remember that sometimes a garage door opener can increase the binding in a door just because of the way it pushes the door down.
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.
Your garage door is programmed to travel a certain distance before it closes.
Try making small adjustments.
It s important to get this switch at just the right distance from the motor so that the door is able to close all the way but the motor also knows to stop running.
This is almost always the result of a dirty or obstructed safety feature.
Whether you re using the passcode entry the buttons inside the garage or your remote opener the openers and the garage door itself must be on the same frequency.
Garage doors were designed to be pulled not pushed.
You might need to consider replacing it if your door is not working properly or you may purchase a new opener.
It goes partway down reverses direction and goes back up again.