Keeping your rooftop unit (RTU) properly maintained isn’t just about preventing breakdowns. It’s about saving money, improving comfort, and extending the life of your system. Here are the top 10 items a professional RTU tune-up should include:

1. Inspect & Replace Air Filters
Dirty or clogged filters restrict airflow, making the RTU work harder. Clean or replace filters to improve efficiency and indoor air quality.

2. Clean Evaporator & Condenser Coils
Dust and debris on coils reduce heat transfer, forcing the system to run longer and consume more energy. Coil cleaning restores proper efficiency.

3. Check Refrigerant Levels & Pressures
Low or incorrect refrigerant levels can lead to poor cooling performance and potential compressor damage. Technicians verify pressures and recharge if necessary.

4. Inspect Belts & Pulleys
Worn or misaligned belts cause squealing, reduced airflow, and energy loss. Regular adjustments or replacements keep fans running smoothly.

5. Verify Electrical Connections & Controls
Loose wiring and faulty controls can cause short cycling, blower failures, or even electrical hazards. A tune-up ensures everything is safely connected.

6. Test Thermostat Operation
The thermostat must respond correctly to temperature settings. Technicians calibrate and confirm communication with the RTU for accurate control.

7. Lubricate Motors & Bearings
Moving parts need lubrication to reduce friction, noise, and wear. Proper lubrication extends the life of fans and motors.

8. Inspect Condensate Drain & Pan
Blocked drains can lead to standing water, mould growth, and water leaks inside the building. Clearing the line prevents costly damage.

9. Check Airflow & Static Pressure
Technicians measure airflow and pressure to ensure ducts and dampers are balanced. Proper airflow keeps every space comfortable.

10. Inspect Safety Devices
Limit switches, pressure controls, and safety interlocks must be tested to confirm they’re protecting the system from overheating or pressure problems.
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✅ A thorough RTU tune-up includes all of the above. Skipping maintenance means higher energy bills, more frequent repairs, and a shorter system lifespan.

📞 Call us today at 905-307-2988 and secure your spot before October 31, 2025.