Ok, the red (of the red/white pair) is for 12V and when connected the battery indicator lights up. The paired white wire is connected to a relay on the back of the refer, but that's all I could ascertain about that wire.

Of the green/black pair I found that these are connected to the water level indicator and varying finger pressure using my body as a resistor I guess, results in the full range of water levels. What's wierd tho is the water level indicator only lights when the switch is pointing to the "battery" position (I get both readouts as the same time this way) but nothing lights when it's pointed to "water" position????

Hope this helps someone smarter than I figure this out (or maybe someone with a wiring schematic)

I'm stalled  till I get this figured out.
mark...