Remove any tarps or covers from the camper that you put on for storage. Make sure to get all of them, including any tarps or cloths that you put inside the camper as well.
Open up the camper if it is the collapsible type. Ensure that everything opens up properly and take note of any rust or squeaking that may need oiling or repair.
Reinstall the house or engine starting batteries if you removed them for the winter. Pay close attention to the positive and negative charges.
Check all the tires on the camper for the correct inflation pressure, which will depend on the type of camper and tires that you have.
Go inside the camper to open of the windows so you can air it out. Visually inspect the inside of the camper and look for any signs of leakage. Liquid or discoloration around ceilings or paneling may indicate a leaking problem.
Open up cupboards and compartments to clean away cobwebs, insects and dust. Use a cloth and soapy dishwater to clean flat surfaces.
Observe the tow-hitch components of the camper, looking for signs of rust or damage. Clean off the old grease and re-lubricate the parts of the hitch in accordance with your camper's manual.
Hitch the camper up to your vehicle and plug in the light umbilical to test that all the brake lights and signals are working.
Sterilize the fresh water tank if your camper has one. Mix a cup of bleach with a gallon of water in a bucket and pour this mixture into your fresh water tank, topping off the tank with water from a hose.
Turn on the water pump and run all faucets until you can smell the chlorine from the water. Top off the tank again with water from the hose and allow the tank to sit for at least three hours. Drain the water and flush the system out by running clean water through all faucets again until you no longer smell the chlorine.
Turn any appliances or household items on inside the camper to test for operation. Test any conditioners, furnaces, lights, radios, or any other workable items in case anything needs replacing.
Wash the exterior of the camper with soapy water and rinse with water from a hose to get rid of any dirt or dust that accumulated over the winter season.
