MRCOOL® TravelCool™ Maintenance Guide: Keep Your RV Air Conditioner Running Like New
Your MRCOOL® TravelCool™ RV Inverter Heat Pump is designed to deliver dependable heating and cooling for years, but like any HVAC system, it performs best when it receives regular maintenance.
Fortunately, maintaining the TravelCool™ doesn’t require specialized HVAC tools or complicated procedures. A few simple inspections and routine cleanings throughout the year can help maintain airflow, improve efficiency, reduce unnecessary wear, and keep your RV comfortable wherever your travels take you.
Whether you’re a full-time RVer or someone who enjoys weekend camping trips, this guide will help you protect your investment and get the most from your TravelCool™ system.
Why Routine Maintenance Matters
Keeping your TravelCool™ clean and well maintained can help:
- Improve cooling performance
- Maintain heating efficiency
- Increase airflow
- Reduce unnecessary compressor run time
- Help prevent dirt buildup
- Extend component life
- Improve indoor air quality
- Reduce operating noise
Regular maintenance is one of the easiest ways to keep your system operating efficiently season after season.
Monthly Maintenance Checklist
Once each month during heavy use:
✅ Inspect the return air filter.
✅ Clean the filter if dirty.
✅ Remove leaves and debris from the rooftop unit.
✅ Inspect the roof gasket area.
✅ Verify unrestricted airflow.
✅ Check for unusual noises.
✅ Inspect visible wiring for damage.
Cleaning the Return Air Filter
The return air filter is your first line of defense against dust, pollen, pet hair, and airborne debris.
When the filter becomes clogged, airflow decreases, forcing the system to work harder to maintain your desired temperature.
Filter Cleaning Steps
- Turn off the unit.
- Remove the filter according to the owner’s instructions.
- Vacuum loose dirt.
- Wash with mild soap and warm water if reusable.
- Allow the filter to dry completely.
- Reinstall before restarting the system.
Never operate the unit without the filter installed.
Cleaning the Rooftop Unit
Your rooftop unit is exposed to rain, dust, tree sap, leaves, insects, and road debris.
Periodically inspect the exterior housing for:
- Leaves
- Pine needles
- Dirt buildup
- Bird nests
- Blocked air inlets
- Damaged shroud
Keeping the outdoor airflow unobstructed helps maintain efficient operation.
Cleaning the Condenser Coil
Over time, dirt and debris can collect on the outdoor condenser coil.
If accessible, gently clean the coil using:
- Low-pressure water
- A soft brush
- Manufacturer-approved coil cleaner, if needed
Avoid using high-pressure washers, which can bend delicate aluminum fins.
Cleaning the Evaporator
The indoor evaporator should also remain clean to maintain airflow.
If you notice excessive dust buildup:
- Inspect the filter first.
- Carefully vacuum loose debris if accessible.
- Avoid damaging the aluminum fins.
Never use sharp tools to clean HVAC coils.
Inspect the Roof Seal
During routine maintenance, inspect around the rooftop gasket and mounting area.
Look for:
- Cracked sealant
- Water intrusion
- Loose mounting bolts
- Damaged roofing material
Addressing small issues early can help prevent more costly repairs later.
Before Every Camping Trip
Before heading out:
✔ Verify the unit powers on.
✔ Test cooling mode.
✔ Test heating mode.
✔ Check the remote batteries.
✔ Inspect the air filter.
✔ Confirm unrestricted rooftop airflow.
A quick inspection before departure can help prevent surprises at the campground.
End-of-Season Maintenance
When camping season ends:
- Clean the filter.
- Remove debris from the rooftop unit.
- Inspect the roof seal.
- Clean visible dirt from the exterior.
- Check the remote batteries.
- Cover the unit only if using a breathable RV air conditioner cover designed for your model.
Spring Start-Up Checklist
When preparing for a new camping season:
- Remove any protective cover.
- Inspect for winter damage.
- Clean the filter.
- Check electrical connections visually.
- Test heating mode.
- Test cooling mode.
- Verify proper airflow.
- Listen for unusual noises.
What NOT to Do
Avoid these common maintenance mistakes:
❌ Never pressure wash the rooftop unit.
❌ Never operate without the filter.
❌ Never block rooftop airflow.
❌ Never use harsh chemicals on plastic components.
❌ Never bend coil fins.
❌ Never ignore unusual noises or vibration.
❌ Never climb onto the roof without proper safety precautions.
Suggested Maintenance Schedule
|
Task |
Frequency |
|
Clean return air filter |
Monthly or as needed |
|
Inspect rooftop unit |
Monthly |
|
Remove leaves and debris |
Monthly |
|
Check roof seal |
Every 3–6 months |
|
Test heating and cooling |
Before each travel season |
|
Clean condenser |
At least annually or as needed |
|
General visual inspection |
Before every trip |
Frequently Asked Questions about the MRCOOL® TravelCool™ Maintenance Guide: Keep Your RV Air Conditioner Running Like New
How often should I clean the filter?
Inspect it monthly during periods of frequent use and clean it whenever dirt begins to restrict airflow.
Can I wash the filter?
If your model uses a reusable filter, wash it with mild soap and water, allow it to dry completely, and reinstall it before operating the system.
Can I pressure wash the rooftop unit?
No. High-pressure water can damage the aluminum fins and other components.
Should I cover my TravelCool™ during storage?
A breathable cover designed for RV rooftop air conditioners may help protect the unit from debris while allowing moisture to escape. Avoid airtight covers that can trap condensation.
Why is my airflow weaker than before?
The first thing to inspect is the return air filter. A dirty filter is one of the most common causes of reduced airflow. If the filter is clean and airflow is still weak, inspect the outdoor air inlets for debris and consult the owner’s manual if needed.
How often should I inspect the roof seal?
It’s a good practice to inspect the roof seal several times each year and before long trips to help catch cracks or signs of water intrusion early.
Why Buy Your TravelCool™ from MRCOOL DIRECT?
When you purchase from MRCOOL DIRECT, you’re backed by a team that specializes in MRCOOL products. We provide expert guidance, installation resources, maintenance tips, and ongoing support to help you get the most from your investment.
Whether you’re a weekend camper or a full-time RVer, we’re committed to helping you enjoy reliable comfort wherever the road takes you.
MRCOOL DIRECT
615-553-8118