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.
Garage door closes all the way then reopens.
Outside of those things you may need to have a technician come and check the unit s out.
I can t work my way past where you said you pull the door and it closes all the way.
Pull the emergency release handle down and back towards the garage door opener.
It goes partway down reverses direction and goes back up again.
This will disconnect the garage door opener from the door.
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.
Close the garage door with the opener and watch it closely as it closes.
Your garage door is programmed to travel a certain distance before it closes.
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.
But changes in weather conditions can causes your garage door components to shift or contract.
If it closes before that distance has been traveled it thinks something is wrong and it reopens to help prevent any damage or safety risk.
If there is a force adjustment out of range that could potentially cause this issue.
You push the button to close the garage door.
To fix this issue and get your liftmaster garage door opener working again follow these troubleshooting steps.