When you can close the door with the wall button by holding it down.
Garage door opener have to hold button down.
I have a 1 2 hp craftsman garage door opener that is about 20 years old.
Press and hold the wall console button until the garage door is completey closed.
Hold down on the buttons until the in car red light flashes rapidly.
If i lift my finger off the button before that point the door will stop and then i have to.
Hold your transmitter up near the selected button pressing both the garage door remote and the selected in car transmitter button simultaneously.
Having to hold down the button is a classic something has interrupted the beam symptom.
One of the sensor lights will usually be blinking when there is a malfunction.
Recently the wall switch that powers opening and closing is not lit and will not activate the opener.
They can easily become mis aligned due to bumping twisting and loose mounting.
Simply disconnecting the sensors will not bypass this behavior.
If it did then a sensor failure would cause the door to work anyway creating a safety issue.
Check for interference from adjacent photo eye sensors of any brand.
Door starts down then stops before it is closed.
This sets the in car transmitter to be your garage door openers make transmitter but you are not done.
To open my garage door i have to hold down the button on my wall until the door is at least halfway up.
So if you have to do this to close the door it means the sensor is malfunctioning.
If an operational problem exists and the garage door opener will not close the opener can be forced to close.
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.
You are overriding the infrared beam sensor when you hold down the wall button continuously while the garage door is closing.