Most people don't read a garage door manual for fun. They search for it because something is wrong. Here are the solutions to the top three issues covered in the A445 manual:
2-digit 7-segment display for status and error codes. hormann a445 manual
If your A445 opens halfway and stops, or reverses for no reason, your limit settings are wrong. The manual provides a strict sequence: Most people don't read a garage door manual for fun