Mrodz

My slide out will not open or closed. It started when my RV would not start, someone help me and said I would change the starter,which I did but RV would not start on its own, I then change the solenoid, but it still did not start, someone check it and said My ignition cylinder was not working, I have now change that and it starts but my slide out no longer want to open?
Were due i start checking it? They were perfectly fine up too when my RV did not start.

2002 Winnebago...