Many garage doors have a powerful torsion spring located horizontally above the door.
Sometimes the garage door opens sometimes id does not.
I pushed the wall button and it would not open.
Simply put if the descending door hits an object the motor detects the resistance and the door opens.
You might have absentmindedly unplugged the operator as you were exiting the garage through your internal door to the house.
The problem is often intermittent.
It worked fine for 2 hours until my wife returned.
The slightest detection such as accumulated leaves snow or ice around the garage door can cause the door to not shut completely.
Then go on and fix these problems properly.
In the funniest of scenarios the problem will simply be due to an unplugged power cord.
Sometimes the fix can be as simple as replacing the batteries in the opener and.
If you tried operating the garage door opener from both the remote control and the door control and the opener did not activate.
Likewise if the beam of light between the floor sensors is broken the door will not shut.
Garage doors sometimes seem to have a mind of their own often deciding when and how far they want to open or close.
I went inside and hit the wall unit and it opened.
I kept trying and it would not work.
Here are the troubleshooting steps.
Even if your garage door opener does not work as expected it is wise to know the common causes of such a functionality issue.
Why does my garage door opener only work sometimes if you have an automated garage door it is likely that you have a garage door opener.
Check the power supply.
Garage door technicians have reported instances of this sometimes accompanied by the opener s lights flashing much in the same way that some door openers flash when the sensor eyes detect an obstacle.
If your craftsman garage door opener is not working at all there won t be any signal to tell you that.
When the door is lowered the spring winds up tightly creating a pulling force that helps lift the door up.
Theoretically it might be possible to repair circuit board problems the problem could be a matter of resoldering a loose connection.
It would not open for her.
I attempted to open the garge with car remote after returning home it would not open.
45 minutes later it worked open up as normal.