A complete RV maintenance and inspection service checklist to protect your plumbing, batteries, and appliances during the off-season. Winterize the freshwater plumbing system to prevent freezing and pipe damage Drain and flush the fresh water tank, water heater, and holding tanks Inspect water lines, fittings, faucets, and connections for leaks or damage Schedule RV plumbing repair for leaking pipes, damaged fittings, clogged drains, or other plumbing issues Treat and protect freshwater and holding tanks for long-term storage Check RV batteries, terminals, connections, and charge levels Inspect battery condition and maintain proper charge throughout storage Test electrical systems, outlets, lights, and appliances Inspect seals around windows, doors, roof penetrations, and exterior compartments Check the roof for cracks, damaged sealant, or potential water intrusion Inspect slide-outs, awnings, and moving components for proper operation Check propane lines, fittings, and appliances for proper operation Inspect the furnace, air conditioner, refrigerator, and other major appliances Check tires for proper inflation, cracking, and signs of deterioration Inspect exterior lights, safety equipment, and emergency systems Clean and protect the RV interior to prevent moisture, mold, and pest damage Perform a complete off-season inspection to identify worn or failing components before your next trip