You might have absentmindedly unplugged the operator as you were exiting the garage through your internal door to the house.
Garage door tries to open but can t.
Try using your remote to open or close your door to determine if the reprogramming was successful.
If you hear your garage door trying to open but it doesn t or if you have a garage door not opening completely a quick visual inspection can show you whether the torsion springs are damaged or broken.
In the funniest of scenarios the problem will simply be due to an unplugged power cord.
The antenna on the motor could be damaged or blocked from the signal.
Make sure it is hanging down from the motor.
Look to see if there are any gaps between the coils if so the torsion spring is likely the culprit.
Then within 30 seconds hold the button on your remote for three seconds or until garage door opener s lights flash or the led light on your opener blinks.
Sometimes a garage door won t open or close for one reason only the operator has no power connection.
You might be out of range.
It it still trying you can hear the motor but it just doesn t have the pull.
While this may seem like a no brainer one of the most common causes of garage door opener failure is simply the result of the power cord working loose from the electrical outlet.
In order to fix this you ll want to make small changes to the close limit setting until the door opener knows to stop once the door has reached the floor.
To reprogram your garage door remote locate then press your opener s learn button.
When you press the button to open the garage door it tries to open but only gets about 2 3 inches up before it stops moving.
When you can t see any blinking red light at all on top the box.
The next step is to attempt to open your garage door manually.
The first step is to locate the emergency release and disengage it do it only if the garage door is completely closed.
If the door opens with the wall switch a simple battery change in the remote should do the trick.
If your garage door is closing fully and then reversing to open again then it may be due to a problem with the close limit switch.
If the door opens as you get very close to the box but fails to open as you back away the battery is low and needs to be replaced.