Water Heater operations

[Oldflyboy]

Installed in the camper is a Suburban SW6DE water heater.

I have a switch on the master control panel that ways water heater and when turned on beside that is a red light that comes on for a little while. I think that is for the operations of the gas side of the heater. I can hear the sparking to light the gas.
On the outside on the front of the heater, is a small switch that just says on/off.
Am I correct to assume that all I need to do if connected to shore power is turn this switch on the outside on and the heater would heat electrically?
Would I have to turn the inside switch on at all?
The owners manual and the one dowloaded is not clear.
I guess the ga would probably heat it up faster then the electric would just keep it hot unless there is high demand then the gas would kick on.
Am I correct in my assumptions?
I yield to those in the know........

[Seadog63]

This might be a long shot but I’ll put it out there, considering we both have the same model coach yours a 2018 and mine a 2021 I’m making a bit of an assumption that the controls and floor plans are similar somewhat. So my control panel for everything is above the coach door, when you turn the hot water heater switch on and the red light comes on As mine does then goes out that means it ignited and is working. After that it’s fine. Pulling the cover off on the outside of mine there is no switch on the heater, this hot water heater stays heated solely off gas. If you want I can check the model of my heater and maybe that’ll help ya.

[Oldflyboy]

Originally Posted by Seadog63

This might be a long shot but I’ll put it out there, considering we both have the same model coach yours a 2018 and mine a 2021 I’m making a bit of an assumption that the controls and floor plans are similar somewhat. So my control panel for everything is above the coach door, when you turn the hot water heater switch on and the red light comes on As mine does then goes out that means it ignited and is working. After that it’s fine. Pulling the cover off on the outside of mine there is no switch on the heater, this hot water heater stays heated solely off gas. If you want I can check the model of my heater and maybe that’ll help ya.

That's OK, I have gotten the answer. I have a SW6DE heater. It has gas and electric switches. I would be that you have a SW6D model, and it only is gas.