What is this switch for? (1 Viewer)

[Motorhome Muppets]

We bought a Swift Kontiki 2004 model a short time ago. The electrical unit in the wardrobe is a Sargent 200 and has two big switches on it. The first one (red) we were told to leave on all the time when the dealer demonstrated it to us. We did not notice there was another switch - a green one which says 'heater' under it. What is this for. There is nothing in the motorhome manual about this switch. I have looked up the manual for the actual Sargent unit (PSU2007) and this does not have a green switch on it either.

 

[jockaneezer]

A heater to stop your waste water from freezing during an icy spell ? I'm not familiar with that model, but they are fitted to some vans.

 

[movan]

... or, don't know, could it be a heater vent that switches on in the back part of the mh when travelling? As heater on dashboard is just for front.

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