Replace broken chain belts sprockets or pulleys.
Garage door opener starts to open push button again.
Try resetting the remote.
Broken garage door torsion or extension springs.
If you garage door is lowering then reversing.
If the garage door is not opening but the motor is running the problem might rest on the springs in your garage door assembly.
Check to make sure the pulley is not boken.
Garage door reversing before closing garage door openers manufactured after 1993 include sensors to prevent a door from closing on a child or pet.
If the remote were to malfunction due to a backward battery installation you might mistake this for a more serious problem with your garage door opener.
It goes partway down reverses direction and goes back up again.
Opener runs but the garage door does not move screw drive models make sure the carriage is engaged.
By wade shaddy updated december 19 2018 you push the button to close the garage door.
Check to make sure the chain belt assembly is not broken or off its pulley.
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.
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.