We had a similar issue 4 years ago. We eventually resolved the problem by tightening all the connectors in the main breaker box in the bedroom. We had to trouble shoot it for about 5 days. It started out the same way as you describe your problem. After a couple more days, it started cycling on and off like the coach was being plugged in and then unplugged at the pedestal.
Intellitec pointed us in the direction of looking for a loose connection in the breaker panel. We were in Alaska at the time so the idea of something having bounced loose seemed appropriate.
