Preventative Maintenance Tips for Your Central AC

Written on: June 1, 2026

What You Can Do and What a Pro Can Do

Your central air conditioning system works hard to keep your home comfortable during the hottest months of the year (which are just around the corner). Like any major appliance, regular preventative maintenance helps it run more efficiently, lowers energy costs, and reduces the chance of unexpected breakdowns. While some maintenance tasks are simple enough for homeowners to handle on your own, others should always be left to trained HVAC professionals.

DIY Air Conditioning Maintenance Tips

There are several easy steps homeowners can take throughout the cooling season to help keep their systems running smoothly.

1. Change Your Air Filter Regularly: One of the most important things you can do to help maintain your central air conditioning equipment is replace or clean your air filter every one to three months, depending on the type of filter and how much your system runs. A dirty filter restricts airflow, forces your system to work harder, and can lead to higher utility bills.
2. Keep the Outdoor Unit Clean: Your outdoor condenser unit needs proper airflow to operate efficiently. Remove leaves, grass clippings, dirt, and debris from around the unit, and keep plants or shrubs trimmed and at least two feet away. You can also gently rinse the condenser fins with a garden hose to remove surface dirt.
3. Check Your Thermostat: Make sure your thermostat is functioning properly and set to the correct temperature. Upgrading to a programmable or smart thermostat can help improve energy efficiency and maintain consistent indoor comfort.
4. Inspect Air Vents and Registers: Walk through your home and make sure supply and return vents are open and unobstructed by furniture, rugs, or curtains. Proper airflow helps your system cool your home evenly and efficiently.

What a Professional HVAC Technician Should Handle

While DIY maintenance is helpful, some parts of your air conditioning system require professional tools, training, and expertise. Here’s what a professional HVAC technician will do as part of a maintenance visit.

1. Refrigerant Checks and Repairs: Low refrigerant levels can reduce cooling performance and damage your system. Only licensed HVAC technicians should inspect refrigerant pressures, identify leaks, and recharge refrigerant safely.
2. Electrical Inspections: Air conditioning systems contain complex electrical components that should be inspected by a professional. Technicians can test capacitors, wiring, and electrical contacts to ensure safe operation and prevent future failures.
3. Deep Cleaning and System Tune-Ups: Professional maintenance includes cleaning internal components such as the evaporator coil, condenser, and fan motors. Technicians also lubricate moving parts, inspect compressor connections, and identify signs of wear before they become major problems. Regular tune-ups can help improve the efficiency of your central air conditioning system and extend the life of your equipment.

Protect Your Comfort with Brideau Energy’s Maintenance Services

At Brideau Energy, we believe preventative maintenance is one of the best ways to protect your investment and avoid costly repairs. Our experienced technicians provide thorough inspections and tune-ups designed to keep your central air conditioning system operating at peak performance all season long.

Our Silver Air Conditioning Preventative Maintenance Service Plan gives homeowners added peace of mind with valuable benefits that include an annual tune-up, priority no-cooling service, a 15% discount on all parts and labor for repairs, and zero trip charges on service calls.

During your maintenance visit, our technicians inspect refrigerant levels and pressure, clean the evaporator coil and condenser, inspect electrical components, lubricate moving parts, and check compressor performance to help catch minor issues before they turn into major breakdowns.

Regular maintenance not only improves your system’s efficiency, it can also help lower your annual cooling costs and extend the lifespan of your equipment.

At Brideau, we have served the residents of Central Massachusetts and Southern New Hampshire since 1987. Our goal is to make the process of owning and maintaining a central air conditioning system as stress-free as possible while helping you stay comfortable all summer long. So whether you need an AC installed, repaired, or tuned-up, you can count on us.

Contact Brideau today to schedule a maintenance visit or enroll in our maintenance service plan, and ensure your cooling system will be running efficiently when you need it most in the months ahead.