Here's my favorite garage door story:
We were getting ready to sell our previous home, so I was cleaning out the garage one day. This was in late June of 2021. After hauling a bunch of stuff out and putting it in the 20 yard rolloff dumpster, I clicked the garage door remote to close the door. Nothing. Just the light on the opener flashing. I went back into the garage and inspected everything and tried again. Nothing. Just the flashing light.
I tried it again a couple of hours later, and the door closed. Next day, the same thing happened. Internally, I said, "I don't have time for this ****!" So I called the garage door company that installed the door three years earlier. The next day, a technician stopped by. It was about the same time of day as the two other days when the door wouldn't close.
He looked at everything and tried the door several times. Then, he asked, "So does it close at other times of the day?" Yes, I told him. He smiled and pointed down at the optical obstruction photoelectric detector. I said, "What?" He explained that the sun was shining directly on the device, making it impossible for that device to detect the light from the transmitter on the other side of the garage door. Doh! So, he stood in a spot where his shadow shaded the photoelectric detector. The door closed.
"Oh, OK. Thanks. How much do I owe you?"
"No charge."
Anyhow, that is why you call the garage door company. Their technicians have seen it all. You haven't.