Hello All,
Just found this site and this subject.
Have been installing Andovers for 15 years and most problems I have seen stem from software. Mainly programmers not understanding what they are controlling.
Now I just program them myself.
Hardware on these things is pretty robust.
Another problem is sequence of operations, the owner thinks it should do this and the PM thinks it is doing that. Define going in what is the sequence is and it will save you headaches and time in the long run.