Aqua furnace setting?

[Odetymes]

On the road with our 2019 Newmar/Ventana. Turned on the Dometric Heating unit overnight, no problems in two zones. Today, the back no longer gives option of furnace but now says "aqua" whatever that is. Turned on and off several times but still the same. Unit in front still lists furnace. No idea what caused or is the meaning of the change. Any help is appreciated!

 

[JRW-NAW]

Been there, done that...here's the fix:

F. “FURN” / “AQUA” - Furnace Or Aqua (Hydronic) Heating Mode (Factory setting is “FURN”) To change the setting from “FURN” to “AQUA” or vice versa, simultaneously press the ∧ and ∨ buttons. The LED will display the selected option.

Safe travels.