The motors can be gotten to by the zipper area on the underbelly. Chances are once you open those zippers you wont get them to close properly. Move the insulation out of the way, you'll see the motor. Gorilla tape works well closing the flaps, clean it good to get the tape to stay on.
12v 500ah, 20 cells_ 4s5p (GBS LFMP battery system). 8 CTI 160 watt panels (1,280 watts)2s4p,Panels mounted flat. Magnum PT100 SCC, Magnum 3012 hybrid inverter, ME-ARC 50. Installed 4/2016 been on 24/7/365, daily 35-45% DOD 2,500+ partial cycles.