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.
Garage door trolley stuck closed.
Manually bring the door to the closed position.
Recently it opened all the way until the trolley hit the bolt that stops it from going any further.
The trolley should travel towards the door and stop.
Lodged garage door track.
Once it topped out the opener stuck there.
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.
Run the motor unit from the remote control or door control.
If your garage door gets stuck when opening this may be why.
Release the door from the garage door opener by pulling the emergency release handle.
Loosen the chain or belt by adjusting the outer nut 4 to 5 turns.
When i disconnected the door it seemed to open and close by hand smoothly.
This can be a quick fix by identifying the object and then removing it.
This relieves the tension.
If the rollers are out of the track contact a clopay master or authorized dealer to professionally and safely get your door back on track.
Your jammed garage door can be caused by something as simple as an obstruction in the track.
My 10yr old house has a sectional aluminum door and a 1 2hp craftsman garage door opener.
Check to see if anything a shovel broom etc fell and is now stuck in the track that is causing it to be lodged.