Skip to content

How to Replace RV Thermostat: A Step-by-Step Guide

Maintaining a comfortable temperature inside your RV is crucial for an enjoyable and relaxing trip.

The thermostat plays a significant role in regulating the temperature and ensuring your comfort on the road.

However, if your RV thermostat is malfunctioning or outdated, it may be time to replace it.

In this comprehensive guide, we will walk you through the process of replacing your RV thermostat, providing you with the knowledge and confidence to tackle this task yourself.

Why Replace Your RV Thermostat?

Before we dive into the details of how to replace your RV thermostat, let’s briefly discuss the reasons why you might consider replacing it in the first place.

  1. Improved Temperature Control: Upgrading your thermostat allows for more accurate temperature control, ensuring your RV remains cozy and comfortable.
  2. Energy Efficiency: Newer thermostat models often feature advanced energy-saving settings, helping you optimize energy consumption and reduce utility costs.
  3. Modern Features: Upgrading to a newer thermostat opens up possibilities for additional features such as programmable schedules, Wi-Fi connectivity, and compatibility with smart home systems.
  4. Reliability: Over time, RV thermostats may become less reliable, resulting in temperature fluctuations or incorrect readings. Replacing the thermostat can restore its functionality and reliability.

How to Replace RV Thermostat

Now, let’s dive into the step-by-step process of replacing your RV thermostat.

With the right tools and following these instructions, you’ll be on your way to a perfectly functioning thermostat in no time.

Step 1: Gather the Necessary Tools and Materials

Before you start the replacement process, gather the following tools and materials:

  • New RV thermostat (compatible with your RV’s heating and cooling system)
  • Screwdriver set
  • Electrical tape
  • Wire connectors
  • Wire strippers
  • Voltage tester
  • Pen and paper (for noting wire connections)

Step 2: Turn off Power and Disconnect Existing Thermostat

To ensure safety during the replacement process, it’s crucial to turn off the power to your RV’s HVAC system.

Locate the circuit breaker or fuse box and switch off the power supply connected to the thermostat.

Next, carefully remove the cover of your existing thermostat.

Using a voltage tester, confirm that there is no electrical current running through the wires.

Once confirmed, disconnect the wires from the thermostat terminals.

Make a note of the wire connections for future reference.

Step 3: Remove the Old Thermostat

With the wires disconnected, remove the old thermostat from its mounting bracket or wall plate.

Depending on the model, you may need to unscrew the thermostat or release it from mounting clips.

Step 4: Install the New Thermostat

Follow these steps to install your new thermostat:

  1. Mount the new thermostat onto the wall plate or bracket, ensuring it is level and securely attached.
  2. Carefully connect the wires to the corresponding terminals on the new thermostat. Consult the manufacturer’s instructions or refer to the notes you made during wire disconnection.
  3. Once all wires are connected, use wire connectors to secure the connections and prevent any loose or exposed wiring.
  4. Double-check all connections to ensure they are secure and properly attached.

Step 5: Test the New Thermostat

Before restoring power to the RV’s HVAC system, perform a quick test to ensure the new thermostat is functioning correctly.

Set the desired temperature and observe whether the HVAC system responds accordingly.

If the HVAC system doesn’t activate or exhibits any issues, double-check the wire connections and consult the thermostat’s user manual for troubleshooting steps.

Step 6: Restore Power and Finalize Installation

Once you have confirmed that the new thermostat is working as intended, it’s time to restore power to your RV’s HVAC system.

Return to the circuit breaker or fuse box and switch on the power supply for the thermostat.

Finally, replace the thermostat cover, ensuring it is securely in place, and enjoy the newfound control over your RV’s temperature.

Frequently Asked Questions (FAQs)

To address common concerns about replacing an RV thermostat, here are answers to some frequently asked questions:

Can I replace my RV thermostat myself?

Absolutely! Replacing an RV thermostat is a manageable task that many RV owners can successfully complete with the right tools and instructions.

What thermostat is compatible with my RV?

To ensure compatibility, consult your RV’s user manual or reach out to the manufacturer. They can provide you with specific thermostat recommendations based on your RV’s make and model.

Do I need any specialized knowledge to replace the thermostat?

While no specialized knowledge is required, having basic electrical skills and familiarity with hand tools can be beneficial. Always follow safety precautions and refer to the manufacturer’s instructions.

Can I upgrade to a programmable thermostat?

Yes, upgrading to a programmable thermostat is an excellent choice. Programmable thermostats offer increased convenience and energy efficiency by allowing you to schedule temperature adjustments throughout the day.

Are there any additional considerations when replacing an RV thermostat?

Before purchasing a new thermostat, ensure it is compatible with your RV’s heating and cooling system. Additionally, take note of the wiring connections and consult the manufacturer’s instructions for any specific installation steps.

Is it possible to revert to the old thermostat if I don’t like the new one?

Yes, it is possible to reinstall the old thermostat if desired. Keep the old thermostat and refer to your notes or take pictures during the replacement process to ensure a smooth reinstallation, if needed.


Replacing an RV thermostat is a relatively straightforward process that can greatly enhance your RVing experience.

By following the step-by-step guide outlined above, you’ll be equipped with the knowledge and skills to replace your RV thermostat confidently.

Remember to prioritize safety, consult the manufacturer’s instructions, and seek professional help if you encounter any difficulties or uncertainties.

With a new thermostat in place, you’ll regain control over your RV’s temperature and ensure a comfortable journey on the open road.