How to Maintain Your RV Air Conditioner

When the summer heat kicks in, your RV’s air conditioner becomes one of its most important appliances. But like any piece of equipment, it needs regular upkeep to keep running efficiently. Learning how to maintain your RV air conditioner ensures cool comfort on every trip and helps extend the life of your unit.

Why RV A/C Maintenance Matters

Without proper care, your A/C can suffer from:

Reduced cooling performance
Higher energy use
Strange noises or foul odors
Costly breakdowns during peak season

If your A/C is already struggling, Daisy RV offers inspections, cleanings, and replacements to keep your rig cool.

1. Clean or Replace the Air Filter

Remove and clean filters monthly during heavy use
Wash with mild soap and water, let fully dry before reinstalling
Replace filters if they’re damaged or excessively dirty

2. Inspect and Clean the Coils

Remove the rooftop shroud to access the coils
Use a coil cleaner or compressed air to clear dirt and debris
Be careful not to bend fins—use a fin comb if needed

3. Check the Condensation Drain

Ensure the drain holes are clear so water doesn’t drip inside the RV
Clean clogs with compressed air or a small brush

4. Examine Seals and Gaskets

Check the foam gasket between the A/C and roof
Replace if cracked, brittle, or leaking air
Proper seals prevent cool air loss and water leaks

5. Tighten Electrical Connections

Inspect wiring for corrosion or loose terminals
Look for burnt smells or discoloration around connections
Always disconnect power before inspecting electrical components

6. Run It Regularly

Turn on the A/C monthly, even in the off-season
Keeps internal parts lubricated and prevents musty odors

7. Use Proper Power Supply

Always connect to the right shore power (30-amp or 50-amp as required)
Use a surge protector to prevent damage from voltage spikes
Consider installing a soft start kit to reduce startup stress

Need help with coil cleaning, seal replacement, or performance testing? Daisy RV has you covered.

Tips to Keep Your RV Cooler

Park in shade whenever possible
Use reflective window covers
Run roof vents and fans to circulate air
Close blinds and curtains during peak sun hours

Cool RV, Happy Travels

By learning how to maintain your RV air conditioner, you’ll avoid breakdowns, improve efficiency, and enjoy a cooler, more comfortable rig. A little preventative care goes a long way toward keeping your adventures stress-free.

Why RV A/C Maintenance Matters