This requires a simple turn.
Sears garage door closes then reopens halfway.
A garage door that only opens halfway becomes a nuisance for many reasons.
The remotes will not work to close the garage door.
To solve the problem identify the source of the radio interference and either move it or turn it off.
They can only open it.
I simply opened the cover case to look at the wire sequence.
There may also be loose wire connections inside the button housing itself.
If an object person or animal blocks the beam the closing door reverses direction.
If there s anything stuck to the bottom of the door such as a leaf a small piece of paper or any type of.
The problem is often intermittent.
As these wires short against the housing the electrical impulse causes the door opener to activate.
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.
Now the green light at the back of the unit keeps flashing.
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.
I simply opened the cover case to look at the wiring sequence to compare to the other one in my garage that wasnt working.
When this happens your garage door will only close by holding down on the wall button until the door fully closes.
Quite often the cause of your door s malfunction is an improperly set garage door limit.
If it closes before that distance has been traveled it thinks something is wrong and it reopens to help prevent any damage or safety risk.
If it still reverses raise the door halfway and stop it.
But changes in weather conditions can causes your garage door components to shift or contract.
I have a craftsman 1 2 hp opener.
This method is the only way to override the safety sensors and close the door.
Some older garage door openers do not have nicely labeled adjustment screws for force and travel limits.
And the door opens half way and then goes in the reverse direction.
Test the sensor eyes by connecting them to short wires directly at the motor unit.
To test trigger the remote while standing close to the motor unit if the door opens consistently from that close distance interference is likely the problem.
Check the bottom of the door.
Replace the garage door opener safety sensor the safety sensor has a pair photoelectric eyes at the base of the rails one eye emits an infrared beam and the other receives it.
