Garage doors have many parts that all work together including safety features.
Residential garage door goes down but goes back up unexpectedly.
Sometimes the sensors will be in alignment and just as the door gets close to being shut it will vibrate enough to push one sensor off.
When a garage door descends on command but then immediately reverses itself the problem is usually with the sensor eyes along the side tracks or with the door s wheels binding in their tracks.
If the door goes up seemingly on its own after you close the door be sure to check for any debris the sensor is picking up.
The button can easily get dirty and stuck in the pushed position.
It goes partway down reverses direction and goes back up again.
Your limit switch needs to be adjusted.
This is almost always the result of a dirty or obstructed safety feature.
Your garage door sensor works by having two photo sensitive devices on either side of the garage door.
The door operator button is similar to a door bell.
But changes in weather conditions can causes your garage door components to shift or contract.
In cases like this your travel down setting simply needs to be adjusted to the new distance.
Examine the garage door opener button.
These garage doors have sensors near the ground to ensure nothing gets stuck underneath the door when it closes.
Find local garage door repair.
It all depends on the configuration but you likely have a button that activates the door operator.
You push the button to close the garage door.
If these can t see each other when the door is almost shut it will send a signal to the garage door motor to open back up.
To troubleshoot the garage door opener button make sure it s clean and free of debris.