ive tried programming homelink a few times. Each time it says that it is programmed, but it will not open or close the garage door. The opener is an older Craftsman and I have programmed a homelink button on a previous car. I seem to remember having to push a button on the unit itself previously, but this time it is just asking me to lush the opener towards the front bumper, then it tells me it’s programmed. Any thoughts?