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How to Replace Your RV Thermostat

When it comes to enjoying your recreational vehicle (RV) to the fullest, maintaining a comfortable indoor temperature is crucial.

The thermostat plays a vital role in regulating the temperature inside your RV, ensuring you have a cozy environment no matter the weather conditions outside.

However, over time, you may find the need to replace your RV thermostat either due to malfunction or desire for an upgrade.

In this comprehensive guide, we will walk you through the process of replacing your RV thermostat, step by step, providing valuable insights and expert tips along the way.

Why Should You Replace Your RV Thermostat?

Replacing your RV thermostat can bring a multitude of benefits to your overall camping experience.

Here are some compelling reasons to consider upgrading your RV’s temperature control system:

  • Enhanced Temperature Accuracy: Older thermostats may lose their accuracy over time, leading to temperature discrepancies and discomfort inside your RV. By replacing your RV thermostat, you can enjoy more precise temperature control.
  • Improved Energy Efficiency: Modern RV thermostats often come equipped with advanced features such as programmable schedules, energy-saving modes, and adaptive temperature control. Upgrading to a new thermostat can help optimize energy usage and reduce your utility costs.
  • Expanded Functionality: Many replacement thermostats offer additional features such as humidity control, fan speed adjustment, and compatibility with smart home systems. These features can enhance your comfort and convenience while on the road.
  • Reliability and Durability: Over time, wear and tear can affect the performance of your RV thermostat. By replacing it with a new one, you can ensure a reliable and long-lasting temperature control system for your RV.

Choosing the Right Replacement Thermostat

Before embarking on your RV thermostat replacement journey, it is crucial to select the right thermostat for your specific needs.

Here are a few factors to consider when choosing a replacement thermostat:

  • Compatibility: Ensure that the thermostat you choose is compatible with your RV’s heating and cooling system. Check the manufacturer’s specifications and consult your RV’s manual for guidance.
  • Features and Functionality: Determine the features you desire in a thermostat, such as programmable schedules, Wi-Fi connectivity, touch screen interface, or voice control compatibility. Consider your preferences and the needs of your travel lifestyle.
  • Ease of Installation: Opt for a thermostat that is relatively easy to install, especially if you plan to undertake the replacement process yourself. Some thermostats come with detailed installation instructions or even video tutorials, which can simplify the process.
  • Brand Reputation: Research and choose a reputable brand known for producing high-quality RV thermostats. Read customer reviews and ratings to gain insights into the performance and reliability of different thermostat models.

By carefully considering these factors, you can make an informed decision and select a replacement thermostat that best suits your requirements.

Tools and Materials You’ll Need

Before diving into the replacement process, gather the necessary tools and materials to ensure a smooth and efficient installation.

Here’s a list of items you’ll likely need:

  • Screwdriver (Phillips or flathead, depending on your RV’s thermostat)
  • Wire cutters/strippers
  • Electrical tape
  • Replacement thermostat (compatible with your RV’s system)
  • Mounting screws
  • Pen and paper (for taking notes during the process)
  • Smartphone or camera (for documenting the wiring connections)

Make sure to have these tools and materials readily available before starting the replacement process to avoid any unnecessary delays.

Safety Precautions

Before working on your RV’s electrical system, it’s essential to prioritize safety.

Take the following precautions to protect yourself and prevent any accidents:

  1. Turn Off Power: Start by turning off the power supply to your RV’s heating and cooling system. This ensures that you won’t encounter any live wires during the replacement process.
  2. Wear Protective Gear: Use safety goggles and gloves to safeguard your eyes and hands from any potential hazards.
  3. Follow Wiring Diagrams: Before disconnecting any wires, carefully study the wiring diagram of your current thermostat. This will help you understand the connections and ensure a smooth transition to the new thermostat.
  4. Double-Check Connections: Once the replacement is complete, double-check all the connections and ensure they are secure. Loose or incorrect connections can lead to malfunctions or even damage your new thermostat.

Taking these safety precautions will help you maintain a secure working environment and ensure a successful replacement process.

Step-by-Step Guide to Replacing Your RV Thermostat

Now that you have a good understanding of the importance of replacing your RV thermostat and the necessary preparations, let’s dive into the step-by-step process:

Step 1: Power Off

Before you begin, make sure your RV’s heating and cooling system is powered off.

This prevents any electrical shocks or damage during the replacement.

Step 2: Remove the Old Thermostat

Remove the cover of your existing thermostat to expose the wiring and mounting screws.

Using a screwdriver, carefully unscrew the mounting screws and gently detach the thermostat from the wall.

Step 3: Document Wiring Connections

Using a pen and paper or your smartphone’s camera, document the wiring connections of your old thermostat.

This will serve as a reference when connecting the wires to the new thermostat.

Step 4: Disconnect Wires

Loosen the screws connecting the wires to your old thermostat.

Pay close attention to the colors and locations of the wires to ensure proper reconnection later.

Step 5: Mount the New Thermostat

Take your new thermostat and mount it to the wall using the provided screws.

Ensure that it is securely attached and level.

Step 6: Connect the Wires

Referencing your notes or photos, reconnect the wires to the corresponding terminals on the new thermostat.

Tighten the screws to ensure a secure connection.

Step 7: Attach the Cover

Place the cover over the thermostat and secure it using the mounting screws.

Step 8: Power On and Test

Turn the power back on to your RV’s heating and cooling system.

Test the functionality of your new thermostat by adjusting the temperature settings and observing the response.


You have successfully replaced your RV thermostat, giving you precise temperature control and improved comfort during your adventures.

Common Issues and Troubleshooting

While replacing your RV thermostat, you may encounter some common issues.

Here are a few troubleshooting tips to help you overcome them:

  • Thermostat Not Responding: If your new thermostat doesn’t respond or display any information, double-check the wiring connections. Ensure that the wires are properly seated and securely fastened to the terminals.
  • Incorrect Temperature Readings: If your new thermostat is displaying incorrect temperature readings, recalibrate it according to the manufacturer’s instructions. This may involve adjusting the temperature offset or performing a factory reset.
  • Short Cycling: Short cycling refers to rapid on/off cycles of your RV’s heating or cooling system. This may indicate an improper connection or compatibility issue with the thermostat. Review the wiring connections and consult the manufacturer or a professional if necessary.
  • No Power or Display: If your new thermostat doesn’t receive power or display any information, check the circuit breaker and ensure the power supply is properly connected. If the issue persists, consider contacting a qualified technician for assistance.

If you encounter any other issues or require further assistance, consult the user manual of your new thermostat or reach out to the manufacturer’s customer support.


Can I replace my RV thermostat myself, or should I hire a professional?

You can replace your RV thermostat yourself if you are comfortable working with electrical systems and have basic DIY skills. However, if you have limited experience or are unsure about the process, it is advisable to seek professional assistance to ensure a safe and successful replacement.

How often should I replace my RV thermostat?

The lifespan of an RV thermostat can vary depending on usage and maintenance. As a general guideline, consider replacing your thermostat every 5-10 years or when you notice a decline in performance, accuracy, or functionality.

Can I upgrade my RV thermostat to a programmable or smart thermostat?

Yes, you can upgrade your RV thermostat to a programmable or smart thermostat, provided it is compatible with your RV’s heating and cooling system. Upgrading to a programmable or smart thermostat can offer enhanced functionality, energy efficiency, and convenience.

Are there any specific brands of RV thermostats that you recommend?

There are several reputable brands known for producing high-quality RV thermostats. Some popular options include Dometic, Coleman, Honeywell, and Atwood. Research customer reviews, features, and compatibility to find the brand and model that best suits your needs.

Can I replace my RV thermostat with a digital thermostat?

Yes, you can replace your RV thermostat with a digital thermostat. Digital thermostats offer precise temperature control, easy-to-read displays, and advanced features. Ensure that the digital thermostat you choose is compatible with your RV’s heating and cooling system.

Can I install multiple thermostats in different zones of my RV?

Yes, if your RV has multiple heating and cooling zones, you can install multiple thermostats to control each zone independently. This allows for customized temperature settings in different areas of your RV, providing personalized comfort for all occupants.


Your RV’s thermostat plays a vital role in maintaining a comfortable and enjoyable travel experience.

By replacing your RV thermostat with a modern and efficient model, you can enhance temperature control, energy efficiency, and overall comfort.

With the step-by-step guide and troubleshooting tips provided in this article, you are well-equipped to undertake the replacement process yourself or make an informed decision when seeking professional assistance.

Upgrade your RV’s temperature control system today and embark on your adventures with confidence!