Congrats on the new to you camper!
I'd double check everything. Start with making sure the battery is fully charged and 12V at least. Take a look at the Atwood site for maintenance of the jacks and do that which will include adding lubrication. I've never seen toggle switches on the jacks, but I'd check all of the connections and rewire if necessary.
'10 Ford F-450, 6.4, 4.30, 4x4, 14,500 GVWR, '06 Host Rainer 950 DS, Torklift Talon tiedowns, Glow Steps, and Fastguns. Bilstein 4600s, Firestone Bags, Toyo M655 Gs, Curt front hitch, Energy Suspension bump stops.
NRA Life Member, CCA Life Member