1997 gulfstream scenic cruiser electrical manual

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hi everyone i have 1997 gulfstream scenic cruiser and it the engine turn just fine but the when i wont to turn the coach switch for the house to use the appliance it wont turn on and i hear a click sound when i try to push the switch and the inverter is dead wont turn on and even if i try to hooked up to shore power i dont get any light or appliances except 2 power outlet
i got confused cause i just change the batteries the engine worked and turn on but no the house is not working the inverter too is dead it wont turn on
anyone have and electrical manual for this coach i n:confused:and thank you