Otis 211 ; 3 stop telescopic hydro; 3 inline openings ; no rear
Problem: unit has just started getting stuck ; FLRP fault. Customer cycles power to restore operation .... clearing most of codes.
Job is over 100 miles out.
I have replaced selector card; and tape guides; checked all magnate placement and orientation at all 3 floors and slowdowns.
Problem occurs about once a week and may happen 2 or 3 times on one day and then not for another week or more

Has anyone had similar problem ? Cure ??

Thanks