Welcome back to another Two-Minute Tech Tip Tuesday, brought to you by the National RV Training Academy (NRVTA)—America’s largest hands-on RV training school! I'm Jeremy Wagers, instructor of the Advanced Air Conditioning and Heat Pump course, and today I'm sharing my top maintenance tips to help you keep your RV cool and comfortable during the blazing summer months.
🔧 Why Seasonal AC Maintenance Matters
Before summer temperatures soar, it’s important to make sure your RV's air conditioner is ready to handle the heat. I recommend performing basic AC maintenance twice a year—once in the spring, and again in the fall when it’s cooler outside and easier to work on your unit. This keeps your system running efficiently and extends its lifespan.
🧼 Step 1: Clean the Coils
Your RV’s AC unit has two sets of coils, and if they’re clogged with dust or debris, your air conditioner will struggle to cool your space.
Here’s what to do:
- Remove the AC shroud (the plastic cover on your rooftop unit).
- Use coil-safe cleaners like Frost King or Nu-Calgon.
- Gently spray and clean both coils.
- Clear away any built-up dust, bugs, or debris.
Why it matters: Dirty coils force your system to work harder, reduce cooling efficiency, and can lead to premature breakdowns. Clean coils mean faster cooling, less stress on the system, and better energy use.
🌬️ Step 2: Open Up Those Air Ducts
Once your rooftop unit is clean, head inside your RV. If you closed your air vents during the winter, now’s the time to open them back up.
Airflow is everything when it comes to cooling. Blocked or closed vents prevent proper air distribution and make your AC work harder for less result. Open vents = better airflow = cooler RV.
⚠️ Step 3: Know When It’s Time for a Technician
While basic maintenance can prevent many issues, some problems require a professional. Keep an eye (and ear) out for these warning signs:
- Fan Runs, But No Cold Air
If your fan kicks on but the air never cools down, your compressor may not be engaging. No compressor = no cooling.
- Compressor Runs, But No Airflow
If you hear the compressor running but no air is coming through your vents, you may have a fan motor issue or a problem with circulation.
In either case, it’s time to call a certified RV technician to diagnose the problem before it gets worse—or hotter.
☀️ Final Tips: Your Summer AC Checklist
✅ Clean both rooftop coils (spring & fall)
✅ Open all interior vents before hot weather hits
✅ Watch for signs of fan or compressor failure
✅ Don’t wait—call a pro when needed
Taking these simple steps now will help you stay cool, avoid costly repairs, and enjoy your summer trips stress-free.
Whether you're an RV newbie or a seasoned traveler, staying ahead of AC maintenance is one of the best ways to stay comfortable on the road. Want to learn more about how your RV systems work—or train to become a certified RV tech?
Join us at NRVTA, where RV owners become experts.
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