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Wiring in Motor homes and other campers can be very confusing. House type wiring has the black wire as + and white as - with a green safety ground. That's single phase 110 Vdc that runs your water heater and other AC accessories.
On the 12 V side you will have red as + and Black as - in a normal configuration.
Sudsy
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2005 Sun Voyager Workhorse W24 with 8.1 ltr Chevy. Allison 2100 transmission. Full body paint.
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