Originally Posted by steve dunham
Did you check the battery fuse in the battery case ?
Depending on the year there may be yet another fuse another just inside the wall also. And you do not have an inverter unless it was installed after market.
Older Scamps had a florescent light
over the sink that only worked with electric hookup, but all others should run on the battery.
Check the battery voltage, then plug in, it should go up slightly if the fuses are all good.