Holding tank monitor wiring

Jeffd39 · Apr 20, 2020

Hello. I have searched Hi and Lo(pun intended) for a holding tank wiring diagram. My tanks use 5 level sensors. Can anyone help. This camper is about a 1990 model.

Thanks

Treeclimber · Apr 20, 2020

Jeffd39, I have the same panel. the fresh tank is enclosed so I can't see how that's wired, but here's the color of wires for the GREY tank from the top down:
blue
yellow
orange
black
and red
For the BLACK tank:
blue
yellow
orange
black
green
Sorry, can't help on the fresh, but I do see a pattern, just don't know that last color.
Hope this helps,
Tree

Jeffd39 · Apr 20, 2020

My fresh water tank is:

Blue
Yellow
Orange
Black
White

Do you happen to know the wiring at the panel?

Treeclimber · Apr 20, 2020

Jeff, give me a day or so, I'm opening my shop in NC and things are a bit busy. I know that only one set of all colors go to the panel, then somewhere they branch to the tanks. I haven't found area yet. When I tested the monitor, all showed empty as they should have. testing tank depth is in the future.
Tree

Jeffd39 · Apr 20, 2020

Thanks! I am not in a huge hurry. I still need to install the the tanks and monitor, then get it all wired. I will be a few week or a month before I am at that point.

Also, the only two wires on my panel that do not match a wire color with the sensors is a purple and a brown

Treeclimber · Apr 20, 2020

Mine is an '86, so their may be a slight difference. Where you have a white makes sense for the fresh tank. Mine is most likely the same. I'll check where those monitor wires go to and we'll find out together.

Holding tank monitor wiring

Jeffd39

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Treeclimber

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Jeffd39

New Member

Treeclimber

Senior Member

Jeffd39

New Member

Treeclimber

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