RV Generator Maintenance: A Comprehensive Guide for Smooth Travels

RV Generator Maintenance Tucson

Traveling in a recreational vehicle (RV) offers the freedom to explore the open road while enjoying the comforts of home. One crucial component that ensures a seamless journey is the RV generator. A reliable generator provides power for appliances, electronics, and essential systems, making it a vital part of the RV experience. To ensure your travels are trouble-free, it’s imperative to understand and implement a comprehensive RV generator maintenance routine. In this guide, we will delve into the key aspects of RV generator maintenance, offering valuable insights and expert tips.

Understanding Your RV Generator

Before delving into maintenance procedures, it’s essential to have a basic understanding of your RV generator. Most RVs are equipped with generators powered by either gasoline, diesel, propane, or even solar energy. Each type has its unique characteristics and maintenance requirements.

  1. Gasoline Generators:
    • Typically found in smaller RVs, gasoline generators are popular for their affordability and ease of use.
    • Regular maintenance involves checking oil levels, air filters, and spark plugs.
  2. Diesel Generators:
    • Larger RVs often feature diesel generators known for their fuel efficiency and durability.
    • Maintenance focuses on fuel filters, oil changes, and ensuring proper coolant levels.
  3. Propane Generators:
    • Propane generators are known for their cleaner emissions and cost-effective fuel source.
    • Routine checks include inspecting fuel lines, ensuring propane tank integrity, and verifying the regulator’s functionality.
  4. Solar Generators:
    • An eco-friendly option, solar generators harness energy from the sun.
    • Maintenance includes keeping solar panels clean and ensuring the battery system is functioning optimally.

Establishing a Regular Maintenance Schedule

A proactive approach to RV generator maintenance is key to preventing unexpected breakdowns. Develop a routine maintenance schedule based on your generator type, usage frequency, and manufacturer recommendations.

  1. Check the Oil:
    • Regularly inspect oil levels and change the oil according to the manufacturer’s guidelines.
    • Use high-quality oil that meets the generator’s specifications.
  2. Inspect Air Filters:
    • Air filters prevent contaminants from entering the generator’s engine.
    • Clean or replace air filters regularly to maintain optimal performance.
  3. Fuel System Maintenance:
    • For gasoline and diesel generators, inspect fuel filters and replace them as needed.
    • Keep the fuel tank clean and use fuel stabilizers for periods of inactivity.
  4. Battery Care:
    • Ensure the RV’s house and chassis batteries are in good condition.
    • Clean battery terminals, check water levels (if applicable), and replace old batteries when necessary.
  5. Cooling System Checks:
    • Monitor the generator’s cooling system, including radiator and hoses.
    • Clean debris from the radiator and check coolant levels regularly.
  6. Exhaust System Inspection:
    • Check the exhaust system for leaks or damage.
    • Ensure the exhaust pipe is securely connected, and the muffler is in good condition.
  7. Testing and Exercising:
    • Regularly run the generator under load to prevent fuel system issues.
    • Exercise the generator for at least 30 minutes every month to keep it in good working order.

Troubleshooting Common Issues

Even with regular maintenance, RV generator issues can arise. Being able to identify and address common problems is crucial for maintaining a reliable power source on your travels.

  1. Failure to Start:
    • Check the fuel supply, battery connections, and oil levels.
    • Inspect the starter motor and solenoid for any issues.
  2. Uneven Power Output:
    • Clean or replace the air filter.
    • Inspect the fuel system, including filters and injectors.
  3. Overheating:
    • Check the coolant level and the condition of hoses and the radiator.
    • Ensure proper ventilation around the generator.
  4. Unusual Noises:
    • Investigate any unusual sounds immediately.
    • Inspect the exhaust system and internal components for damage.
  5. Smoke Emission:
    • Excessive smoke can indicate fuel system problems.
    • Check for clogged air filters or issues with the fuel injectors.

Professional Maintenance and Servicing

While regular maintenance can prevent many issues, seeking professional servicing at specified intervals is essential. A certified RV technician can conduct in-depth inspections, address potential problems, and ensure your generator is in peak condition.

  1. Annual Servicing:
    • Schedule an annual servicing appointment with a qualified technician.
    • This should include a thorough inspection of all generator components.
  2. Load Bank Testing:
    • Periodic load bank testing assesses the generator’s ability to handle heavy loads.
    • It helps identify and rectify potential issues before they escalate.
  3. Fuel System Cleaning:
    • Professional cleaning of the fuel system ensures optimal performance.
    • This includes cleaning injectors and fuel lines.
  4. Software Updates:
    • If your generator has electronic components, ensure that software is up to date.
    • Technicians can install the latest updates during servicing.

Storing Your RV Generator

When your RV is not in use, proper storage practices are crucial to ensure your generator remains in top condition for the next adventure.

  1. Fuel Stabilization:
    • Add a fuel stabilizer to the tank to prevent fuel degradation during periods of inactivity.
    • Run the generator for a short period after adding the stabilizer to ensure it circulates through the system.
  2. Battery Maintenance:
    • Disconnect the negative terminal of the battery to prevent drainage during storage.
    • Charge the battery periodically to maintain its health.
  3. Covering and Shelter:
    • When possible, store the RV in a covered area to protect the generator from the elements.
    • If covered storage is not available, invest in a quality generator cover.
  4. Regular Checks:
    • Periodically check on the RV and generator during storage.
    • Start the generator and run it under load for a short period to prevent issues related to inactivity.


In conclusion, a well-maintained RV generator is the key to uninterrupted and enjoyable travels. By understanding the specific requirements of your generator type, establishing a regular maintenance schedule, troubleshooting common issues, seeking professional servicing, and adopting proper storage practices, you can ensure that your generator remains a reliable power source throughout your RV adventures. Remember, a little preventive maintenance goes a long way in preserving the heart of your RV – the generator – and keeping your journeys smooth and worry-free. Safe travels!