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Wiring An Atwood RV Water Heater With Double-Panel On/Off Switch

Question:

A friend of mine unhooked my Atwood 91230 dual panel switch your diagram was helpful but the wires I have are not all the right colors on your diagram it says a orange wire and I have no orange wires it also shows 3 lines underneath one of the plug-ins on the diagram I dont know what that means. The wires I have left over that Im not sure about are a red wire, a red and white wire and a dark brown or black wire please help Im tired of no hot water

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Expert Reply:

The manual for the Double-Panel On/Off Switch for Dometic Gas / Electric Combination Water Heaters - White # AT91230 lists the wire as orange but the manual for Atwood water heaters like AT94022 list the wire as red. It's referring to the wires that come out of the top of the unit. The three dash symbol you're referring to means ground.

The blue wire will connect to terminal 6 of the switch.
Terminal 4 of the switch will go to the negative battery terminal.
The green wire will connect to the negative battery terminal.
The brown wire will connect to terminal 3 on the switch.
Terminal 2 will go to the positive on battery terminal.

You'll need four Female Spade Terminal Quick-Disconnect # DW01899-1, one Deka Heat Shrink Butt Connector Packs # DW05743-5, and two Deka Ring Terminals # DW05737-1 to complete the connections of these wires.

I've attached the wiring diagrams for both the switch and the water heater below to help aid you in this installation.

Dual Panel Switch Wiring Diagram
Dual Panel Switch Wiring Diagram
(click to enlarge)
Atwood Water Heater Wires
Atwood Water Heater Wires
(click to enlarge)
Atwood Water Heater Wiring Diagram
Atwood Water Heater Wiring Diagram
(click to enlarge)
expert reply by:
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Kevin C

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