If the door opens without a hitch the fault lies with the automatic opener but if you can only open the door halfway the problem is the door itself.
How to fix a garage door that only opens halfway.
Close the door completely.
Wondering why your garage door only opens part way or stops closing halfway down.
Firstly check that you re using it within the range required for your opener.
Locate the limit switch adjustment either on the back of the opener or behind the light bulb s lens cover.
Some models have two screws labeled.
Make sure that it has enough amount of grease add if necessary.
Wipe out the old grease with a grease solvent and put a new lubricant.
Having some trouble with a garage door that seems to quit midway through either opening or closing.
Manually lift the door by hand.
Check the grease on the tracks and joints.
You may also need to reprogram your keypad or replace the batteries in it.
Also verify the antenna on the motor unit is in the proper placement.
Pull the emergency release cord to disengage the opener trolley from the door.
Set a safety ladder under the garage door opener.
To evaluate whether the problem lies with the door or the automatic opener make sure the door is in the fully closed position then disengage the opener trolly from the door by pulling the.