This webpage addresses the 30 amp circuit breaker in the 2000-era D motorcoach.

For the 2000 and possibly early 2001 Discovery coaches, Fleetwood used a 30 amp circuit breaker with a red reset button located in the hoodup compartment.  Many of these circuit breakers were faulty and could not handle 30 amps.  The newer, corrected breakers have a black reset switch.  If you have a red reset switch, call Fleetwood and request that this breaker be replaced.  Alternatively, request Fleetwood to send you a replacement as this is not a difficult job.