The dogwoods are starting to bloom along Highway 321, and we’re watching our guests pull into Arrow Creek with rigs that have been sleeping through winter. After months of storage, your RV needs more than a quick once-over before you hook up and head into the Smokies. We’ve spent enough springs helping campers troubleshoot issues that could have been caught during proper dewinterization to know that a systematic approach saves headaches and protects your investment. The temperature swings we get here in Gatlinburg—40 degrees at night, 70 during the day—make thorough preparation even more critical.
Start Outside: Inspecting Your RV’s Exterior
Before you touch a single system inside your rig, walk around the exterior with a notebook. We recommend doing this inspection in your driveway before you head to camp, but if you’re storing your RV nearby and bringing it straight to Arrow Creek, our pull-through sites give you plenty of room to work.
Check your roof first. Winter weather leaves behind debris, and even a small accumulation of leaves in a roof vent can cause drainage issues once spring rains start. Look for any cracks in the sealant around vents, skylights, and the air conditioner unit. The freeze-thaw cycles we experience in East Tennessee are particularly hard on roof sealant. Run your hand along seams—if the caulk feels brittle or pulls away easily, you’ll need to reseal before your first trip.
Inspect all exterior compartments. Open every door and check for signs of rodent activity: droppings, nesting material, or chewed wires. We’ve seen more than one generator fail to start because mice nested in the housing over winter. Check your propane lines while you’re at it—look for any damage to the rubber hoses and ensure all connections are tight.
Your tires need close attention. Even if your RV sat on blocks, check for flat spots, cracks in the sidewalls, and proper inflation. The recommended PSI is on the tire sidewall, but verify it’s appropriate for your loaded weight. Check the spare too—it’s been sitting just as long. We keep an air compressor at our camp store if you need to top off once you arrive.
The Critical Water System Dewinterization Process
This is where your RV dewinterization checklist gets serious. Your water system took antifreeze or compressed air to winterize, and reversing that process requires methodical attention to every component.
Start by replacing your water heater anode rod if it’s been more than a year. Remove the drain plug, let any remaining antifreeze drain out, and inspect the rod. If it’s more than 75% depleted, replace it. This simple step extends your water heater’s life significantly.
If you used antifreeze to winterize, you’ll need to flush the entire system. Connect to a water source—our full hookup sites provide excellent pressure for this job—and open all faucets, both hot and cold. Run water until it flows clear and you can’t smell antifreeze anymore. Don’t forget the outdoor shower if you have one. Flush the toilet multiple times. Run the water heater through a cycle.
Sanitize the fresh water tank even if it looks clean. Mix a quarter cup of bleach per 15 gallons of tank capacity with water, fill the tank, and let it sit for at least four hours. We’ve had guests run this process overnight while they sleep in one of our camping cabins, then complete the flushing process the next morning using our water hookups. Drain the tank completely, refill with fresh water, and flush again until you can’t smell bleach.
Check every connection under sinks and around the toilet. Winter storage can cause fittings to loosen. Tighten anything that’s hand-loose, but don’t over-torque plastic fittings.
Electrical and Propane Systems Check
Your RV’s electrical system needs verification before you plug into our 30 or 50 amp service. Start with your battery or batteries. If you removed them for winter storage, reinstall and check the water level in each cell if they’re not maintenance-free. Charge them fully before testing any systems.
Test your converter by plugging into shore power and checking whether it’s charging the batteries. Your 12-volt systems—lights, water pump, furnace fan—should all operate smoothly. If anything’s sluggish or non-functional, you may have a wiring issue that developed over winter.
Check your GFCI outlets by pressing the test button, then reset. Verify that all outlets work. Test your surge protector if you use one—they can fail without obvious signs.
For propane, start with a leak test. Mix dish soap and water, brush it on all connections, and open the propane valve. Bubbles indicate leaks. If everything’s tight, test your appliances one at a time: stove, oven, water heater, furnace, and refrigerator on propane mode. The refrigerator often takes 24 hours to reach proper temperature, so fire it up early in your dewinterization process.
We’ve noticed that furnaces sometimes struggle after sitting idle. If yours won’t ignite, check the sail switch and ensure the exhaust vent is clear. The temperature drops we get here at night—even in April, we’ve seen it hit 38 degrees—mean you’ll want that furnace working reliably.
Interior Systems and Appliances
Open every cabinet and check for moisture, mold, or pest damage. Spring humidity in the Smokies can be significant, and even a small leak that developed over winter can cause serious problems. Smell for mustiness. Check under the mattress in the bedroom—this is a common place for hidden moisture issues.
Run your air conditioner through a test cycle. It should cool within 15 minutes and drain condensation properly. If it’s struggling, the coils may need cleaning, or you might be low on refrigerant.
Test your generator under load. Let it warm up for a few minutes, then turn on the air conditioner and microwave. It should handle the load without surging or stalling. Change the oil and filter if you’re due—check your manual for the interval. We’ve got disposal facilities for used oil at our camp store.
Check your awning. Extend it fully and look for tears, mold, or mechanical issues with the arms. Clean it with appropriate awning cleaner—dish soap works in a pinch. Make sure the automatic retraction works if you have that feature. Spring storms roll through the Smokies quickly, and a stuck awning can mean expensive damage.
Common Dewinterization Mistakes to Avoid
We’ve watched enough campers learn these lessons the hard way that we want to save you the trouble. The biggest mistake is rushing. Your RV dewinterization checklist should take most of a day if you’re being thorough. Trying to knock it out in an hour means you’ll miss something.
Don’t skip the sanitization step on your water system. The antifreeze sitting in your lines all winter isn’t something you want to drink, and any stagnant water can harbor bacteria. Take the time to flush and sanitize properly.
Many campers forget to check their slide-out seals. These rubber seals dry out over winter and can tear when you extend the slides. Treat them with appropriate seal conditioner before operating the slides.
Another common error is testing everything while still in storage with no hookups. You need full electrical and water connections to properly test your systems. If you’re storing your RV offsite, consider bringing it to Arrow Creek a day early to run through your complete checklist with access to our full hookups.
Don’t ignore small issues hoping they’ll resolve themselves. That slight propane smell, that outlet that doesn’t work, that faucet with reduced pressure—these are symptoms of problems that will get worse, not better. Address them now while you have time and access to service facilities.
When to Call a Professional
Some aspects of RV dewinterization are solidly DIY territory. Others require professional help, and knowing the difference saves money and prevents damage.
Call a technician if you smell propane and can’t locate the source of the leak. This isn’t something to troubleshoot yourself. Any electrical issue beyond basic outlet testing—problems with your converter, inverter, or breaker panel—should go to a professional. If your water heater won’t ignite despite proper propane flow, or if your refrigerator won’t cool on any setting, these are jobs for trained RV technicians.
Roof work beyond basic inspection and minor caulking is worth hiring out. Professional RV roof repair ensures proper sealant application and can identify structural issues you might miss. If you find significant water damage inside—soft floors, stained ceilings, warped walls—get a professional assessment before your first trip.
There are several RV service centers within 20 minutes of Arrow Creek. We keep a list of recommended technicians at our office for guests who discover issues after arrival. Our long-term sites work well if you need to leave your rig for a few days of service work.
Preparing for Smoky Mountain Spring Conditions
Your RV might be dewinterized, but camping in the Smokies during spring requires some specific preparation. Pack for temperature swings—shorts for afternoon hikes to Laurel Falls, fleece for evenings around the fire pit. Your furnace and air conditioner might both run in the same 24-hour period.
Check your fresh water tank capacity and fill it before arrival if you’re planning any dry camping side trips. Spring is when Cades Cove gets busy, and having a full tank means you can stay flexible with your plans.
Bring leveling blocks. Spring rains can soften ground, and while our sites are well-maintained gravel, having extra leveling capability helps ensure your refrigerator runs efficiently and you sleep comfortably.
Update your first aid kit and check expiration dates on any medications you keep in the RV. Restock your propane if you’re below half a tank—you’ll use more than you expect with cool nights requiring the furnace.
We’re watching more rigs roll in every day as March progresses into April. There’s something satisfying about seeing a rig that’s been properly dewinterized, systems humming, ready for a season of camping. The work you put in now pays off every time you hook up and head out, whether you’re exploring the national park trails or just settling in for a long weekend with the sound of the Little Pigeon River in the background. Our full hookups and amenities are here to support you through the process—use our laundry facilities for those musty RV linens, connect to park-wide WiFi to look up troubleshooting videos, and stop by the camp store if you need supplies. We’ll see you on the sites, ready to enjoy everything spring in the Smokies has to offer.