You are overriding the infrared beam sensor when you hold down the wall button continuously while the garage door is closing.
Garage door opener has to be force closed.
2 close the garage door while holding onto the door handle.
When the garage door opener is first installed it is programmed to learn the fully open and fully closed position and then it stores it to memory.
If your opener is more than five years old it was most likely programmed with a specific amount of force needed to pull the garage door up.
If an operational problem exists and the garage door opener will not close the opener can be forced to close.
When the door reverses before it even hits the floor this is often because the close force setting needs adjustment.
Over time that amount of force needs to be increased to.
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.
Garage door openers have an adjustment screw that controls the closing force the pressure with which a door is allowed to descend before the motor switches off.
If when closing your door its bottom edge contacts the floor and then reverses direction and raises again you will need to adjust your close force.
From inside your garage close your garage door.
Press and hold the wall console button until the garage door is completey closed.
When the garage door is closing and it doesn t reach the fully closed position it assumes there is an obstruction in the way and then it reverses.
So if you have to do this to close the door it means the sensor is malfunctioning.
Tuesday june 26 2018.
Open the garage door using the garage door opener.
Check for interference from adjacent photo eye sensors of any brand.
Door starts down then stops before it is closed.