Atwood Water heater won't work on gas
I have a Atwood gas/electric water heater with DSI and it works fine on electric but does not work on gas. The gas valve does not open, the ignitor does not fire, the red light on the switch panel doe...
Forum Discussion
bjarnold wrote:
The previous owner had an inverter installed so he could run the fridge on power instead of gas. I unplugged the inverter since I don't plan on any dry camping anytime soon. Could the 12 volts on the water heater be tied into that?
Well, not following this exactly. An "inverter" uses 12 volts DC to create 120 volts AC.
Odd your prior owner actually used an "inverter" to run the fridge on the electric element. Why did he not just run the fridge on gas and be done with it? That is why they are made that way. Even the fridge has to have 12 volts DC to run the control system regardless if it running on gas or electric if he had an RV fridge. Like a Dometic or Norcold.
Your hot water heater has 12 DC volts going to it. You said the electric side of the HW heater worked. Even when using the electric element, the control board has to have 12 DC volts to turn on the 120 VAC electric element. The 12 volts DC turns on a relay in the back of the heater to then turn on the 120 VAC element. And you said the orange wire when on gas had 12 volts to it. Did you physically measure that 12 volts at the heater control board or somewhere else?
How are you thinking the "inverter" is affecting the HW heater?
There may be more to the inverter thing, but need more info.
