ServiceNomad RV · Knowledge
RV Spring De-Winterization Checklist
After months of winter storage, your RV needs a thorough check and preparation before you hit the road. De-winterization involves flushing the plumbing system, checking all systems for proper operation, and addressing any issues that developed during storage. Following a systematic checklist ensures your RV is safe and ready for the camping season.
Why De-Winterization is Important
During storage, RV systems sit dormant, seals can dry out, and fluids can settle or evaporate. If you winterized the plumbing system with antifreeze, you need to flush it completely before using the RV. Batteries may have lost charge, tires may have developed flat spots, and rodents or pests may have found their way inside. A proper de-winterization process ensures all systems are functional, safe, and ready for use. Skipping this step can lead to surprises on your first trip—like finding out the water pump doesn't work, the refrigerator won't cool, or the tires are unsafe to drive on.
Plumbing System Flush and Check
Start by flushing the RV antifreeze from the plumbing system. Connect to a fresh water source, open all faucets, and let water run until it's clear and no longer tastes or smells like antifreeze. Flush the water heater by draining it completely and refilling it several times. Run the water pump and check for leaks at faucets, the toilet, and under sinks. Test the water heater in both gas and electric modes and ensure you get hot water. Check the gray and black tank valves for leaks and proper operation. If anything leaks or doesn't work, address it before your first trip. Plumbing issues are much easier to fix at home than at a campsite.
Electrical, Appliances, and Systems Check
Charge or reinstall the battery and test all lights, outlets, and appliances. Turn on the refrigerator in all modes (AC, gas, and battery if equipped) and ensure it cools properly. Test the AC and furnace—let each run for at least 10 minutes. Start the generator and run it under load (turn on the AC or other high-draw appliances) for 15–20 minutes. Check the converter and ensure it's charging the battery properly. Test the slideouts and ensure they extend and retract smoothly. Check the awning for damage and test its operation. If any system doesn't work, troubleshoot or schedule a repair before you leave for your first trip.
Exterior and Safety Checks
Inspect the roof for any damage that occurred over the winter and check the sealant around vents and AC units. Look for signs of leaks inside, especially around windows, slideouts, and the bathroom. Check the tires for proper pressure, weather cracking, and flat spots. If the tires are more than 6 years old (check the DOT date code), consider replacing them. Test all exterior lights, including brake lights and turn signals. Check the propane system for leaks by applying soapy water to connections and looking for bubbles. Test the smoke, CO, and propane detectors and replace batteries if needed. Once everything checks out, your RV is ready for the season.
💡 Prevention Tips
- Flush the plumbing system completely and check for leaks before your first trip.
- Test all appliances and systems—AC, furnace, refrigerator, water heater, and generator.
- Inspect the roof and check for any damage or leaks that developed during storage.
- Check tire pressure and condition, and replace tires if they're more than 6 years old.
- Test all safety detectors and replace batteries as needed.
Can't fix it yourself?
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