Maintaining your home’s air conditioning (AC) system is essential for ensuring optimal performance, extending its lifespan, and controlling energy costs. While some maintenance tasks are simple enough for homeowners to handle, many require professional expertise to prevent costly damage and ensure safe operation. In this guide, we’ll explore key maintenance tasks, highlight when professional assistance is necessary, and offer practical tips to improve AC efficiency.

Routine maintenance tasks.

A well-maintained AC system operates more efficiently and lasts longer. Homeowners can tackle several tasks to keep their system running smoothly, but knowing when to call a professional is crucial to avoid potential hazards.

Checking and replacing air filters.

Air filters are vital in maintaining air quality and ensuring the system isn’t overworked. Dirty filters restrict airflow, reducing efficiency and straining the system, which can lead to higher energy bills and potential breakdowns.

How often to replace air filters.

Homeowners should check their filters monthly and replace them every 1-3 months, depending on factors like pets, allergies, or high dust levels. A professional can help determine the ideal replacement schedule for your home and recommend high-efficiency filters if needed. Learn how to tell when to replace your AC filters from your local HVAC pros at Petro. If it is time to replace your filter, you can shop for a new one on our website. We have a range of filters to fit any AC system.

Cleaning AC coils and coil fins.

Your AC system's coils and fins are responsible for heat exchange, making their cleanliness crucial for maintaining efficiency. Homeowners can gently remove surface debris with a soft brush, but deep cleaning should be left to professionals to prevent accidental damage.

Evaporator coil maintenance.

The evaporator coil absorbs heat from the indoor air. Over time, dust and grime can accumulate, leading to ice buildup and reduced cooling performance. Professional technicians have specialized tools to clean the coils properly, ensuring optimal performance.

Condenser coil maintenance.

Located in the outdoor unit, the condenser coil expels heat from your home. Keeping the area around the condenser clear of debris and foliage is a task homeowners can manage. However, professional cleaning is essential to maintain efficiency, especially after pollen-heavy seasons or severe weather.

Inspecting and cleaning air vents.

Clean air vents promote proper airflow and improve indoor air quality. Homeowners should inspect vents regularly, but professionals can perform comprehensive ductwork inspections to identify hidden issues.

Ensuring proper airflow and checking for obstructions.

Ensure vents aren’t blocked by furniture or curtains and vacuum them regularly to remove dust. If airflow seems weak or uneven, a professional can assess the system for blockages or airflow imbalances.

Periodic inspections and checks.

In addition to regular maintenance, periodic inspections are crucial to identify potential issues before they become costly repairs. Professional technicians are trained to spot subtle signs of trouble that homeowners might overlook when called to perform an AC tune-up.

Checking refrigerant levels.

Refrigerant is the substance that cools the air inside your home. Incorrect refrigerant levels can cause inefficient cooling and damage the system. Only certified professionals should handle AC refrigerant due to the specialized equipment and safety protocols required.

Signs of low refrigerant.

Common signs of low refrigerant include reduced cooling power, ice on the refrigerant lines, and hissing sounds. If you notice any of these symptoms, contact a professional immediately.

Inspecting electrical components.

Faulty electrical components can pose serious safety risks and compromise system performance. Professional technicians should handle electrical inspections to ensure safe and efficient operation.

Checking wiring and connections.

Over time, wiring and electrical connections can loosen, increasing the risk of malfunctions or fire. Professionals will inspect these components, tightening connections and replacing damaged wires as needed.

Thermostat calibration.

A properly calibrated thermostat ensures the system maintains the desired temperature efficiently. Professionals can test and calibrate the thermostat, ensuring it accurately reads and controls indoor temperatures. If you need a new thermostat, do your research before purchasing and installing to ensure you choose a compatible thermostat.

What to expect from a professional AC service or tune-up.

A professional AC service typically includes a comprehensive inspection of the entire system. Key tasks include refrigerant level checks, coil cleaning, electrical inspections, airflow assessments, and performance evaluations. Scheduling regular professional maintenance not only prevents breakdowns but also extends the lifespan of your AC system, ensuring optimal performance year-round.

For AC tune-ups ahead of the hot summer months, schedule yours with your local HVAC pros at Petro to keep cool and comfortable on even the warmest days of the year.

Homeowner tips for efficient air conditioning use.

Beyond maintenance, adopting smart habits can improve your AC system's efficiency and lower energy costs.

Maintaining optimal temperature settings.

Set your thermostat to a consistent, energy-efficient temperature, such as 78°F when you’re home and higher when you’re away. A professional can help fine-tune your system for maximum efficiency.

Enhancing home insulation and sealing.

Proper insulation and sealing keep cool air inside, reducing strain on your AC. Professionals can identify insulation gaps and recommend improvements to boost efficiency.

Using programmable thermostats.

Programmable or smart thermostats allow you to automate temperature adjustments based on your schedule. Professional installation ensures the thermostat integrates seamlessly with your HVAC system, maximizing comfort and savings.

Stay on top of your home’s AC functionality and set a reminder every spring to consult our AC maintenance checklist to make sure that your system is working efficiently and effectively to keep you comfortable on hot days.

When to replace your AC system.

Even with regular maintenance, AC units have a finite lifespan. Signs that it might be time for a replacement include rising energy bills, frequent repairs, and systems over 10-15 years old. Consulting with an HVAC professional can help you select a new, energy-efficient system that meets your home’s cooling needs. 

Upgrading your AC to a more modern, energy-efficient unit is a big step. Learn more about deciding when to replace or upgrade your home’s AC system with expert insights from Petro and contact Petro when you need to replace your AC system.

By balancing regular homeowner maintenance with professional support, you can ensure your AC system runs efficiently and reliably for years to come. Investing in routine care enhances performance and prevents costly breakdowns, making professional AC maintenance a smart long-term strategy. Get all the support you need from your local HVAC pros at Petro Home Services. Explore our AC service offerings, including AC tune-ups, 24/7 emergency AC repairs and browse our AC service plan options.

Sources:

• https://www.energy.gov/energysaver/maintaining-your-air-conditioner

• https://www.epa.gov/radon/importance-hvac-maintenance