[Motor31]

Check to make sure the battery isolator switch is not pushed in. It's in the jack control box and is a push pull switch. It should be out to have the battery power everything in the coach. Second area to check is the overload breaker in the battery box area. It's a small silver looking box that has the battery cables going to it. There is a very small black button sticking out of the front end of it. Push that in and if it clicks the breaker in it was tripped. If that is tripped all the 12 volt power from the battery will be cut off.

If those don't pan out then start checking for loose wires at the battery (clean terminals too) then check the 12 volt fuse box to make sure all of the wires are tight there.