There may also be loose wire connections inside the button housing itself.
Sears garage door closes then reopens halfway.
Now the green light at the back of the unit keeps flashing.
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.
The problem is often intermittent.
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.
Test the sensor eyes by connecting them to short wires directly at the motor unit.
If there s anything stuck to the bottom of the door such as a leaf a small piece of paper or any type of.
I simply opened the cover case to look at the wire sequence.
A garage door that only opens halfway becomes a nuisance for many reasons.
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.
As these wires short against the housing the electrical impulse causes the door opener to activate.
Some older garage door openers do not have nicely labeled adjustment screws for force and travel limits.
Quite often the cause of your door s malfunction is an improperly set garage door limit.
This requires a simple turn.
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.
The one that was working isnt working anymore.
I have a craftsman 1 2 hp opener.
Your garage door is programmed to travel a certain distance before it closes.
This method is the only way to override the safety sensors and close the door.
They can only open it.
Fast easy step by step process on how to properly program your garage door travel system.
The remotes will not work to close the garage door.
Check the bottom of the door.
If an object person or animal blocks the beam the closing door reverses direction.
I simply opened the cover case to look at the wiring sequence to compare to the other one in my garage that wasnt working.
If it still reverses raise the door halfway and stop it.
To solve the problem identify the source of the radio interference and either move it or turn it off.
But changes in weather conditions can causes your garage door components to shift or contract.
