If I am reading this correctly, the jack is still working, but making noises. Electric jacks need to be serviced everyonce in a while. Maybe a little grease in the right places will take care of the problem. This should be covered in the jack owners manual.
WBCCI 10656 Southeastern Camping Unit
Associate European Unit
2006 Safari LS 23 ft
Formerly 1964 Bambi II
"I got a fever and the only prescription is more cowbell"