I would imagine that there is in 'inline' fuse breaker, not a 120v circuit breaker as you may be thinking. Following the wire back to the chassis battery may be the best bet, but look first in the battery bay itself, as there are several 'bus fuse's mounted on the wall that can sometimes trip, with a little 'yellow flag' protruding. Push it back in.
'14 Palazzo 33.3 bunkhouse 34' diesel
KingTailgater2 Dish HD, 100w/5a SOLAR, BlueOx
100,000+mi since '14 - US, Alaska, Canada - Hiawassee, GA! (also, '14 Gulfstream Amerilite and '07 ForestRiver Rockwood) : )