The Dometic RV water heater may not be working on electric or gas due to several factors. It is important to know what could be causing the issue before attempting to fix it. Below are some of the most common reasons why your Dometic RV water heater may not be working on electric or gas.
How does Dometic RV Water Heater Work?

Dometic RV water heaters typically use an electric heating element to heat the water. This means that they require a power source in order to work properly. If there is no power being supplied to the unit, then it will not be able to generate any hot water. Additionally, if there is a problem with the wiring or electrical components of the Dometic RV water heater, then it may not function correctly either.
Dometic RV water heaters also often use gas as their source of fuel. This type of heater requires a propane tank and regulator in order to operate properly. If either one of these two pieces are malfunctioning or missing, then the heater will not be able to generate any hot water. Additionally, if the pilot light is not lit, then the heater may not work correctly either.
Do RV Water Heaters Run Better An Propane Or Electric?
The answer to this question depends on several factors, including the size of your RV and the type of water heater you have. Generally speaking, electric water heaters tend to be more energy efficient than propane models but propane models are better suited for longer trips due to their ability to store fuel for extended periods of time. Ultimately, it is up to you to decide which type best fits your needs. Consult a professional if you are unsure which water heater is best for your RV.
Reasons Why Your Dometic RV Water Heater May Not Be Working On Electric Or Gas

- Blocked air intake: The air intake of the water heater might have become blocked, which can cause it to not heat up properly when running on either electric or gas power. This can happen because of lint, dirt, and other debris that clog the filter inside the unit. To fix this problem, you should clean out the filter and make sure that it is clear of any blockages.
- Faulty wiring: Faulty or frayed wiring can cause the water heater to not work on either electric or gas power. This could be due to a broken connection, or even worn-out parts that need to be replaced. Check all of the wires in your unit before attempting to fix this issue.
- Low water pressure: If your Dometic RV water heater has low water pressure, then it may not heat up properly when running on either electric or gas power. You will need to check the incoming water pressure and adjust it accordingly in order to get the desired results from your unit.
- Corrosion: Corrosion can also cause your Dometic RV water heater to not work on either electric or gas power. This happens when the metal parts of the unit have been exposed to extreme temperatures and humidity for an extended period of time. To fix this issue, you should replace any corroded parts with new ones.
- Incorrect settings: Incorrect settings can also cause your Dometic RV water heater to not work correctly on either electric or gas power. Make sure that all of the settings are correct for both types of power sources before attempting to fix this issue.
- Lack of fuel: If there is not enough fuel (electricity or gas) being supplied to the unit, this could explain why it is not working on either electric or gas. Check that there is sufficient fuel being supplied and make any necessary adjustments.
By understanding why your Dometic RV water heater is not working on electric or gas, you should be able to troubleshoot and fix the issue quickly and easily. If you are still having trouble, then contact a professional for assistance.
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