Your RV generator is your mobile lifeline—powering your air conditioner, microwave, outlets, and more when shore power isn’t available. Whether you’re dry camping or dealing with power outages, knowing how to maintain an RV generator ensures it performs when you need it most.
Why Generator Maintenance Is So Important
An RV generator is a small engine that needs regular care, just like your vehicle. Without it, you risk:
- Failure to start when boondocking
- Loss of power to essential appliances
- Damage from contaminated fuel or dirty oil
- Shortened generator lifespan
If your generator has trouble starting or running rough, Daisy RV can inspect and service it before your next trip.
How to Maintain an RV Generator
1. Run the Generator Regularly
- Run it at least once a month for 30–60 minutes
- Turn on high-draw appliances (A/C, microwave) while running to load-test
- Prevents stale fuel and keeps internal parts lubricated
2. Change the Oil
- Refer to the owner’s manual for intervals (typically every 100 hours or annually)
- Use the recommended oil type (often SAE 30 or 15W-40 for gas/diesel units)
- Don’t forget to replace the oil filter if equipped
3. Inspect and Replace the Air Filter
- Check for dust, bugs, and debris
- Replace if it looks dirty or worn
- A clean air filter keeps combustion efficient and reduces strain
4. Check the Spark Plug (Gasoline Models)
- Inspect for wear or carbon buildup
- Replace as needed (usually every 300 hours)
- A fresh plug improves starting and fuel efficiency
5. Monitor the Fuel System
- Use fuel stabilizer if the generator won’t be used for 30+ days
- For diesel generators, check for water contamination or algae buildup
- Keep the fuel tank at least ¼ full to prevent air in the system
6. Clean the Exterior and Vents
- Remove dust, leaves, and debris around the housing
- Ensure the exhaust system is clear
- Avoid pressure washing sensitive components
7. Watch for Error Codes
- Many generators have indicator lights or fault codes
- Refer to your manual or bring it to Daisy RV if a code appears
- Don’t ignore flashing lights or warning indicators
8. Replace the Fuel Filter
- Clogged filters reduce performance and can starve the engine
- Recommended every 300–500 hours depending on fuel type and conditions
Seasonal Tips
- Before winter storage: Run with stabilizer, then shut off fuel and drain carburetor
- Before summer use: Change oil, check air/fuel filters, and do a test run
- If unused for months: Perform a full inspection and fuel flush if needed
Trust Your Power Source
Learning how to maintain an RV generator helps you avoid trip-ruining power failures, expensive repairs, and long-term damage. With just a bit of upkeep, your generator can be a reliable part of every adventure.
