Powered seats are fused in the BCC (Battery control center). This is a black metal box about 8" square usually located in a forward basement compartment near the stairs. Remove the cover by lifting the two black latches. Fuses are the standard automotive (ATO) type. Fuses for the seats should be near the bottom right, and are labeled on the PC board.
Bob - Folsom CA
2008 Fleetwood Southwind 35A, Workhorse W-22 8.1
Acme EZE Tow Dolly - 2007 Honda Odyssey