Outside of those things you may need to have a technician come and check the unit s out.
Garage door closes all the way then reopens.
But changes in weather conditions can causes your garage door components to shift or contract.
Pull the emergency release handle down and back towards the garage door opener.
This is almost always the result of a dirty or obstructed safety feature.
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.
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.
It goes partway down reverses direction and goes back up again.
You push the button to close the garage door.
This will disconnect the garage door opener from the door.
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.
I can t work my way past where you said you pull the door and it closes all the way.
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.
Close the garage door with the opener and watch it closely as it closes.
If the garage door does not close completely or begins to close and then opens back up again the down limit switch needs.
Your garage door is programmed to travel a certain distance before it closes.