i carried my 2005 country coach to superior coach in lebonan tn to have saveral things done. in the process after they hit the leave switch by the door they have been able to get the crestron system back up. this has been going on for over a month after two from from someone out of nashville they are saying that one of my converters is out. i question that if the crestron sys is 12 volt why would it run through the convertor. anyone with knowledge of this would appreciate your input thanks pat