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.
Garage door closes and reopens immediately.
This is almost always the result of a dirty or obstructed safety feature.
Close the garage door with the opener and watch it closely as it closes.
As these wires short against the housing the electrical impulse causes the door opener to activate.
Your garage door is programmed to travel a certain distance before 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.
Fast easy step by step process on how to properly program your garage door travel system.
It goes partway down reverses direction and goes back up again.
The solution is usually one or more of the following.
If the door closes while holding the button pressed you are likely having one of the following issues with your safety sensors.
The symptom of this is a garage door that is in constant motion opening fully then immediately descending only to start the same cycle again.
But changes in weather conditions can causes your garage door components to shift or contract.
The sensors are dirty wipe lenses with a clean soft cloth.
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.
If you re craftsman chamberlain etc garage door opener is closing and then opening up its likely a common problem related to the stop limit mechanism.
You push the button to close the garage door.