Your garage door is programmed to travel a certain distance before it closes.
Garage door closes all the way then reopens.
To fix this issue and get your liftmaster garage door opener working again follow these troubleshooting steps.
But changes in weather conditions can causes your garage door components to shift or contract.
This will disconnect the garage door opener from the door.
It goes partway down reverses direction and goes back up again.
If there is a force adjustment out of range that could potentially cause this issue.
Close the door with either the door control or the remote control.
You push the button to close the garage door.
If the door closes and then opens again on its own adjust the rod in the tube to provide 1 inch of cushion compression when the door is completely closed.
Pull the emergency release handle down and back towards the garage door opener.
Outside of those things you may need to have a technician come and check the unit s out.
If the door starts to close then opens again and the light begins to flash the infrared safety sensors are out of adjustment or defective.
If your garage door won t open or close the problem could be a bent track a broken torsion spring or a bad capacitor int he motor housing.
This is almost always the result of a dirty or obstructed safety feature.
If it closes only partway the safety sensors are usually responsible clean the lenses or realign them and make sure there are no obstacles blocking the beam.
I can t work my way past where you said you pull the door and it closes all the way.