Strategic maintenance can save AC (and your wallet)

When summer heat arrives, a working air conditioner is essential. However, many people forget about their AC until it stops working or the energy bill skyrockets. Regular maintenance is the secret to a cool home and low costs. Here is a simple guide on what you can do yourself and when you need to call an expert.

What you can do

Maintenance doesn’t always require a toolbox of specialised sensors. Much of what keeps an air conditioner “breathing” properly is simple hygiene and vigilance.

Change the filters

If you do nothing else, change your filters. It is the single most effective way to ensure efficiency. A clean filter restores airflow and can lower cooling costs by 5% to 15%. Check them every 30 to 60 days—more often if you have pets.

Keep the coils clean

Your AC has two main sets of coils: the evaporator (inside) and the condenser (outside). These get dirty over time. Dirty coils act as insulation, blocking heat transfer and reducing efficiency. To keep them working, change indoor filters regularly and clear any debris within two feet of the outdoor unit so it has enough “breathing room” to release heat.

Straighten the fins

The aluminium fins on your coils are delicate. They bend easily, blocking airflow and reducing efficiency. Use an inexpensive “fin comb” to straighten them yourself—no professional needed.

When to call the experts

While homeowners can handle basic cleaning, an AC is a complex machine. Once a year, usually in the spring, it is vital to hire a licensed professional for a full service.

The refrigerant reality

It is a myth that AC units need to be “topped off” like a car needs gas. An AC system is sealed; if refrigerant is low, you have a leak. A professional won’t just add more; they will find and repair the leak using specialized equipment to safely capture the gas instead of venting it into the air.

Mechanical and electrical precision

A pro looks where you can’t. They check for burned electrical contacts, tighten loose connections, and measure motor voltage. They also verify your thermostat’s accuracy. If it is miscalibrated, your system may run longer than necessary, wearing out the compressor prematurely.

Do the ductwork

Even the most efficient AC is wasted if your ducts leak into the attic or walls. A professional can perform a leakage test and seal those gaps, ensuring that all the air you pay to cool actually reaches your living space.

AC maintenance is a partnership. By changing filters and clearing debris, you provide the daily care the system needs. An annual professional tune-up provides the deeper check-up that prevents total breakdowns. Don’t wait for a heatwave to find out your system is struggling. A little maintenance today ensures your home remains a cool, cost-effective sanctuary all summer.