RV Water Heater Wiring Diagram

If you own an RV or are planning on buying one, it’s essential to understand its components to make the most of it. One such component is the water heater, and understanding its wiring diagram is essential. In this article, we’ll guide you through the basics of RV water heater wiring diagram, including its components, wiring diagram, and FAQs.

What is an RV Water Heater?

A water heater is an essential component in any RV that allows you to enjoy hot water whenever you need it. The RV water heating system works similarly to the one in homes, where it heats water and stores it in a tank. The difference is that RV water heaters are smaller and use propane or electricity for heating.

Components of an RV Water Heater

An RV water heater has four primary components: a tank, a burner assembly, a thermostat, and a safety valve. Let’s discuss these components in detail.

Tank

The tank holds and stores the hot water. It’s usually made of aluminum or steel and has insulation to keep the water hot. The size of the tank varies from six to ten gallons.

Burner Assembly

The burner assembly is responsible for heating the water. It’s usually powered by propane or electricity and has a pilot light that ignites the burner. There’s also a thermocouple that senses when the pilot light is on and turns off the gas if it goes out.

Thermostat

The thermostat controls the temperature of the water. It’s connected to a sensor that detects the temperature of the water and adjusts the burner assembly accordingly. The thermostat also has a high-temperature limit switch that turns off the burner if the temperature gets too hot.

Safety Valve

The safety valve is a crucial safety component that prevents the tank from exploding if the pressure gets too high. It’s also called a pressure relief valve and releases hot water if the pressure exceeds the set limit.

Wiring Diagram of an RV Water Heater

Now that you know the components of an RV water heater let’s take a look at its wiring diagram. The wiring diagram varies depending on the type of water heater and its power source. However, the basic wiring diagram is as follows:

Wire color Function
Black Hot wire from the switch to the thermostat
Red Hot wire from the thermostat to the heating element
White Neutral wire from the switch to the heating element
Green or bare copper Ground wire

FAQ

Q: Can I use both propane and electricity to heat the water in my RV?

A: Yes, some RV water heaters offer a dual power option, where you can use either propane or electricity to heat the water.

Q: How long will it take to heat the water in an RV water heater?

A: The time it takes to heat the water varies depending on the size of the tank, the power source, and the temperature of the water. Generally, it takes about 30 minutes for the water to get hot.

Q: How can I maintain my RV water heater?

A: To maintain your RV water heater, you should regularly drain and flush the tank to remove any sediment or debris. You should also check the anode rod and replace it if necessary. It’s also crucial to inspect the burner assembly, thermostat, and safety valve for any damages or wear.

Q: Can I install an RV water heater myself?

A: Installing an RV water heater requires some technical know-how, and it’s recommended to leave it to a professional. However, if you’re confident in your skills, you can refer to the manufacturer’s instructions and install it yourself.

Q: How much does it cost to replace an RV water heater?

A: The cost of replacing an RV water heater varies depending on the type of water heater and its power source. On average, it can cost anywhere between $500 to $800.

Conclusion

An RV water heater is an essential component that allows you to enjoy hot water while on the road. Understanding its wiring diagram and components can help you maintain and troubleshoot any issues that may arise. We hope that this article has been informative and has helped you gain a better understanding of RV water heater wiring diagrams.