Check to make sure the chain belt assembly is not broken or off its pulley.
Garage door opener starts to open push button again.
If you garage door is lowering then reversing.
Check to make sure the pulley is not boken.
By wade shaddy updated december 19 2018 you push the button to close the garage door.
Replace broken chain belts sprockets or pulleys.
Broken garage door torsion or extension springs.
This is almost always the result of a dirty.
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.
It goes partway down reverses direction and goes back up again.
Try resetting the remote.
Opener runs but the garage door does not move screw drive models make sure the carriage is engaged.
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 remote were to malfunction due to a backward battery installation you might mistake this for a more serious problem with your garage door opener.
If not re engage it.