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Steve H.
Reviewed in the United States on January 18, 2025
This replacement gas valve is for a wide array of Atwood/Dometic water heaters. Check your model and, in some cases, serial number to ensure this is the correct model, but unless you have a weird oddball unit, this is likely it. The solenoids on the valve are not marked with any manufacturer label, so only time will tell if they are reliable. No idea if they are UL/CE listed, but the fact that they are not marked leads me to believe they are not.RV water heaters employ a dual solenoid system for safety. Both solenoids have to be open in order to allow gas flow. That way, if one gets stuck in the open position, the other still shuts off to stop the gas flow. That is, for the actual gas flow - they are plumbed in series.An additional protection is that they wire the solenoids. Even though the valves are plumbed in series, they are wired in parallel. That way, they operate independently of one another.These are easy to test. Just unplug the connector on the red wires. Then, use your meter to test the resistance of the solenoids. Just measure from the connector on the red wires to any good ground point on the chassis (easiest is where the other wires from the solenoid (should be green) attach to the valve body. Each solenoid should be about 40 ohms. However, since these are wired in parallel, the ohms shown on the meter will be the average of the two solenoids. So, in this case, you would want something around 20 ohms. It is easier to measure them together since they are already wired that way. If you get OL, one of the solenoids is burnt open. It doesn't matter which - just change the valve.Please note, in order to change the valve, you are having to break the propane line. In most states, this requires someone certified to do this. If you do not feel confident, please hire a professional. As a certified RV tech, I can promise you MOST of the RV techs you will see are NOT certified for propane. ASK. Make them prove it. If they are not, and your RV explodes, they may have insurance to make you whole (assuming no one gets injured or killed), but then again, they may not. Why risk it, just because they chose to risk it.
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