Misaligned dirty or defective photo eyes.
Garage door only closes if i hold the button.
When you can close the door with the wall button by holding it down.
This method is the only way to override the safety and close the door.
Any transmitter like a handheld clicker or outdoor keypad will also not work to close the door if there is a problem with the sensor.
When this happens your garage door will only close by holding down on the wall button or wall console until the door fully closes.
This method is the only way to override the safety sensors and close the door.
Door closes only if you hold in the push button.
You may find that the door will only move an inch or so in the close direction.
You will find that the door will only move an inch or so in the close direction and reverse.
They can easily become mis aligned due to bumping twisting and loose mounting.
A small amount and the door returns that is the sign of the safety sensor system.
So if you have to do this to close the door it means the sensor is malfunctioning.
Copied this off the website in my source.
This is also a direct clue that the safety sensors are the problem.
You are overriding the infrared beam sensor when you hold down the wall button continuously while the garage door is closing.
One of the sensor lights will usually be blinking when there is a malfunction.
Until it completely closes and the remotes only make the door move.