What is the best way too repair clear coat peeling on a motorhome?

If peeling you can scrape it off with a razor blade. Sand the remaining paint with 400 grit. Sand/feather the edges that don't scrape off. "Clean" and add 3 coats (progressively more each time) of Clear. There is an item sold in spray cans called "Peel"at paint shops but it will remove the paint too.