Water heater operation.
I need some help understanding the operation of my water heater. The unit is a 12 gallon Suburban with DSI. If I have the DSI switch in the on position, does the unit switch automatically from electric to gas or vice versa? I only have one water heater switch on my interior control panel. My old TT was also a DSI unit but it had a gas switch and an electric switch. Some knowledge on this would be appreciated.
2012 Ram 3500 DRW Cummins High Output
2012 Cedar Creek 36B2