If you garage door is lowering then reversing.
Garage door opener starts to open push button again.
Check to make sure the pulley is not boken.
You ll need your owner s manual as the procedure to reset the remote varies by manufacturer but it s a relatively quick fix that involves pushing the buttons on.
Check to make sure the chain belt assembly is not broken or off its pulley.
It goes partway down reverses direction and goes back up again.
By wade shaddy updated december 19 2018 you push the button to close the garage door.
Opener runs but the garage door does not move screw drive models make sure the carriage is engaged.
Try resetting the remote.
Replace broken chain belts sprockets or pulleys.
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.
This is almost always the result of a dirty.
If the garage door is not opening but the motor is running the problem might rest on the springs in your garage door assembly.
If not re engage it.
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.