Wiring Instructions For A Dometic RV Water Heater Single-Panel Control Switch

Question:

Hooked the three wires up in back but I have none of the other wires hooked up old one didnt have but 3 wires

asked by: Johnathan H

Expert Reply:

Since you don't have the wiring harness on your previous RV water heater you most likely had an all propane powered unit. The Atwood RV Water Heater w/ Heat Exchange - Gas and Electric - Automatic Pilot - 8,800 Btu - 6 Gal #AT96163 is powered by both gas and electric and has a wall mounted control switch which is where the red, blue, white, and green wires on top of your water heater would run to. Since you don't already have the # AT91859 wall switch installed you would need to install it in your RV and run wires from it to the water heater. I've attached the wiring diagram for you below.

Depending on the distance of the switch to the water heater you could use the Replacement 4-Wire Control Harness for Atwood Water Heaters # AT93312 which will come with connectors to easily attach to the prongs of the # AT91859.

expert reply by: Kevin C