5 motorhome maintenance tasks you shouldn’t overlook

Adventure 4 min read

Of the different RV types, motorhomes are unique. They serve not only as our living space when traveling but also our means of mobility. Because of this, the maintenance for motorhomes is a bit more involved. You need to have two minds regarding maintenance: maintenance for the campsite, and maintenance for the road.

So let’s take a look at five key maintenance tasks you should complete. Some of these should be performed prior to every trip. Others might only need to be completed once a year or season. But by creating a list and a schedule, you stay on top of important maintenance and increase the longevity of your motorhome.

1. Generator maintenance

Motorhomes are equipped with an onboard power generator. This allows you to run your appliances when boondocking or when you can’t hook up to electricity. Performing regular maintenance will ensure your generator is up to snuff when it matters.


Locate the generator and inspect for any damage prior to use. Include a visual and audio inspection of the exhaust system, looking for any damage to the exhaust pipe, listening for uncommon noises when it’s running, and ensuring the exhaust pipe is pointed away from the RV and clear of any obstacle that might prevent natural ventilation from the area.

Monthly exercise

The easiest maintenance you can perform on your generator is simply to run it once a month. This is often referred to as “exercising” your generator, and it’s a healthy practice that keeps all parts running smoothly.

Monthly exercise keeps all parts lubricated, eliminates damaging moisture buildup, and prevents carbon buildup. If you’re using your generator at the campsite each month, this will all happen automatically. If your motor home is going to be in storage, ensure that you run the generator at least once a month at 50% to 75% of its rated load. Refer to your manual to determine this.

2. Slide-out seals

Slide-outs have both inner and outer seals that allow the slides to function without letting in water or moisture from outside. Over time, the seals can deteriorate. Yearly slide-out seal maintenance can increase the life of your seals and keep your slide-outs functioning smoothly.


There are three different types of slide-outs, and each requires slightly different maintenance depending on the components. Prior to maintenance, complete a quick inspection of the main components of any slide-out:

  • Inspect the gears on the side of the slide-out box for damage.
  • Do not stretch cables to their full length; allow at least an inch of slack on the cord.
  • Check for hydraulic leaks and inspect motor assembly fasteners.

Cleaning and conditioning

By keeping the rubber slide-out seals clean, you ensure no debris buildup causes damage when the slide-out is retracting and extending. Once you’ve cleaned the exposed rubber, use an appropriate slide-out conditioner that will prevent cracking or deterioration of the rubber.


Ensure all the moving pieces are properly lubricated—specifically the slide-out mechanism. This is the metal railing component that allows the unit to slide out. Use recommended lubrication and visually inspect the components as the slide-out extends.

3. Tire tips

Remember that the tires are the only parts of your vehicle that interact with the road—so safety starts with the health and maintenance of your tires!

Pre-trip inspection

Tires are one of the easier items to check off your list before departing on a trip. Ensure you complete an inspection like this before leaving each time.

  • Tire pressure: Check each tire and ensure the PSI is at its recommended rating for your weight load.
  • Tread check: You want no less than one-eighth of an inch of tread.
  • Damage check: Are there any markings or damage to the sidewalls of your tires?


Just because you aren’t using your motorhome doesn’t mean you can let it sit. The tires need attention in storage, too.

Use tire covers during the winter months or when your motorhome is in storage to protect your tires and wheels from excess exposure. This will reduce the chances of important tire or wheel components rusting, as well as exposure to the rubber.

Tire pressure goes down over time while your wheels are in storage. And if left underinflated, the integrity of the tire could be compromised. Use your tire pressure gauge frequently and add air to the tires at least once a month in storage.

Rotation and alignment

At least once a year, have all your tires rotated and take your motorhome to a shop that can complete an alignment. This increases tire longevity and fuel efficiency and keeps your ride smooth.

4. Exterior maintenance

Make a habit of regularly inspecting the exterior of your rig prior to any trip. This not only allows you to identify any debris that needs to be cleared but helps you take stock of the RV’s condition so you can identify changes following the trip.


Complete a visual inspection of the exterior of your RV to identify wear and tear: Rust, peeling, warping, or chipping all indicate the need for repair or replacement. Inspect all sealed areas for cracks, gaps, or bubbles in the sealant.


If your RV is equipped with an attached ladder, your roof is likely safe to walk on, and you can clean and remove any branches or leaves prior to leaving. If not, complete these tasks on the side without stepping on the roof. Use water and a light solvent to clean the roof, especially if your RV is parked beneath a tree.

Inspect the rooftop air conditioning unit and clear any dirt or leaves that may be stuck in the filter or on the exterior of the unit.

5. General maintenance

There are some fairly standard maintenance tasks that, in general, keep your rig running healthy and as it should. These can range from engine maintenance to amenity maintenance, and you should complete these regularly.

Fluids and filters

Nothing will do more to protect your engine and prevent breakdowns than staying on top of recommended oil, filter, and fluid changes. Keep a regular schedule and a log of your mileage from when you last completed changes.


Deep cycle batteries should be replaced every three to five years. With that knowledge, inspect batteries before every trip for any signs of corrosion at the connection points. When storing your RV, remove the batteries from your rig and store them in a proper environment.

Fresh, gray, and black water

Complete all necessary and recommended maintenance for your fresh, gray, and black water tanks, including recommended flushing and adding a deodorizer and necessary chemicals as needed.

Remember that the more you keep up on maintenance, the longer your RV will last. Keep it protected with additional mechanical breakdown coverage wherever you travel, for as long as you have your RV.

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