How Regular AC Maintenance Can Save You Money in the Long Run

November 22, 2023

As the temperature in Brisbane climbs, there’s a good chance you’re reaching for the air conditioner remote more frequently. But while the immediate relief of a cool room is undeniably appealing, have you ever stopped to consider the cost implications of frequent air conditioner usage? Before you shake your head in despair, there’s good news. By regularly maintaining your air conditioner, you can save significant amounts of money in the long run, while also enjoying a cooler, more comfortable home.

The Importance of Regular AC Maintenance

Air conditioning units, like any machine, have several moving parts that wear out over time. However, regular AC maintenance can prevent minor issues from ballooning into larger problems that lead to system failure. A well-maintained air conditioner not only works more efficiently – resulting in a cooler home – but it also consumes less energy, reducing your electricity bill. Besides, frequent checks and professional services can help identify potential issues before they necessitate expensive repairs or even replacements. So, in essence, regular AC maintenance keeps you, your wallet, and your AC unit happy.

Understanding Long-Term Savings vs Immediate Costs

It’s easy to dismiss regular AC maintenance as an unnecessary expense, particularly if your unit seems to be working just fine. However, this viewpoint often overlooks the bigger picture of long-term savings. Regular maintenance may have an upfront cost, but these fees are often minor compared to the high costs of emergency repairs or new units. Moreover, maintenance can extend the lifespan of your AC system, delaying the need for a costly replacement. In other words, investing a small amount today can prevent a substantial financial outlay tomorrow, ensuring your hard-earned money is saved for the things that truly matter to you.

The Basics of Air Conditioning Systems

Understanding the mechanism of an air conditioning system can be quite beneficial, particularly when it comes to maintaining it effectively. It provides a better picture of how the system works, which components need special attention, and what happens during the cooling cycle.

How an AC System Works

In layman’s terms, an air conditioning system works by removing heat from inside your home and transferring it outside, thereby cooling the indoor air. It accomplishes this using a cycle of evaporation and condensation, facilitated by a few key components. This process continues until your home reaches the temperature set on your thermostat.

Core Components of an AC System

An air conditioning system comprises several primary components. First, the evaporator coil helps to absorb heat from your home’s air. This warmed refrigerant then flows to the compressor, which pressurises it and moves it along to the condenser coil. In the condenser, the heat is expelled outside, and the refrigerant cools down. The expansion valve then controls the amount of cooled refrigerant going back into the evaporator, starting the cycle anew.

The Cooling Cycle: From Evaporation to Condensation

The cooling cycle of an air conditioner begins with the evaporator coil, which transforms the refrigerant from a liquid into a gas, absorbing heat in the process. This heat is then expelled outside via the condenser coil, transforming the refrigerant back into a liquid state. This cyclical process of evaporation and condensation allows your air conditioner to cool your home effectively, providing you with a comfortable living space, even in Brisbane’s sometimes harsh summer conditions.

The Lifespan of an Air Conditioning Unit

The lifespan of an air conditioning unit varies, depending on factors like the brand, model, and most importantly, the level of maintenance it receives. On average, a well-maintained residential AC unit can last anywhere from 10 to 15 years. However, neglecting regular maintenance can significantly reduce this lifespan, resulting in a premature need for replacement. Thus, taking care of your air conditioning unit is not only crucial for ensuring a cool home but also for getting the most out of your investment.

Why Regular AC Maintenance Matters

You wouldn’t expect your car to keep running smoothly without regular servicing, and the same goes for your air conditioner. Maintenance isn’t just a ‘nice-to-have’; it’s a crucial part of keeping your AC unit in top shape and ensuring its longevity. But why is this so important? Let’s delve deeper.

Ensuring Optimal Performance

The key to a comfortably cool Brisbane home is an optimally performing AC system. But how can you ensure that your unit is functioning at its best?

Importance of AC Efficiency

Efficiency is at the heart of an optimally performing AC unit. An efficient system cools your home quickly, maintains a consistent temperature, and uses less energy doing so. This not only results in a comfortable living environment but also leads to lower electricity bills. Regular maintenance, such as cleaning or replacing filters, checking refrigerant levels, and inspecting system components, helps maintain this efficiency. It ensures minor issues that can impact performance are detected and rectified early.

Preventing Overworking of the AC Unit

When your AC unit is not maintained, it has to work harder to cool your home, leading to excessive wear and tear. This overworking can result in frequent breakdowns and shorten the unit’s lifespan, leading to costly repairs or replacements. Regular maintenance helps prevent this scenario by ensuring the system is functioning optimally and efficiently, reducing the strain on the unit.

Prolonging the Life of Your AC Unit

An air conditioner is a significant investment for any Brisbane resident, so naturally, you’d want to get the most out of it. Regular maintenance can extend the lifespan of your AC unit, delaying the need for a costly replacement.

Proactive maintenance practices, such as scheduled professional services, can identify potential problems that might shorten the unit’s lifespan if left unaddressed. In this way, regular maintenance not only ensures you enjoy a cool, comfortable home for longer but also maximises the return on your AC unit investment.

Breaking Down AC Maintenance

Maintenance can seem like a daunting task, but when broken down into manageable chunks, it becomes much easier. Here, we’ll look at some routine checks that you can perform yourself, and then discuss the professional services that are an essential part of a well-rounded maintenance plan.

Routine Checks You Can Do Yourself

Many aspects of AC maintenance are simple and can be carried out by any Brisbane homeowner. These routine checks can help keep your system running smoothly between professional servicing.

Cleaning and Replacing Filters

Filters are the first line of defence against dust and debris that can hamper your AC’s efficiency. Depending on your unit, filters should be cleaned or replaced every one to three months. This process is usually as simple as removing the filter, cleaning it with a soft brush or warm soapy water, letting it dry, and then reinserting it. If it’s beyond cleaning or damaged, replacement filters are typically available at your local hardware store.

Checking for Leaks and Blockages

Leaks in your AC unit can lead to loss of refrigerant, while blockages can prevent proper airflow. Both can reduce the efficiency of your system and lead to higher energy bills. You can check for leaks by looking for oil stains around the AC unit or puddles of water under the indoor air handler. Similarly, checking for blockages involves a visual inspection of the outdoor unit and vents for any visible obstructions.

Professional Maintenance Services

While DIY checks are valuable, they can’t replace the detailed inspection and servicing performed by a licensed professional. Engaging a professional service ensures all components of your AC unit are working as they should.

Annual or Bi-Annual Servicing

Depending on the age of your AC system and how heavily it’s used, professional servicing should be scheduled annually or bi-annually. These services typically include a thorough cleaning of the unit, checking and topping up the refrigerant, inspecting ductwork for leaks, and checking all electrical connections. They’ll also calibrate your thermostat and make sure all controls are working correctly.

Advanced Repairs and Replacements

At times, maintenance will uncover more significant issues that require advanced repairs or replacements. This could involve replacing a failing motor, fixing a refrigerant leak, or repairing a damaged compressor. These tasks are best left to professionals due to their complexity and the potential risks associated with DIY attempts. By catching these issues early during a routine service, you can often avoid more costly problems down the line. Remember, investing in professional maintenance now can save you a significant amount of money in the future.

The Cost Aspect of Regular AC Maintenance

While regular AC maintenance involves some costs, it’s essential to understand that these are investments towards the efficiency and longevity of your unit. Let’s dive into the specifics of the costs involved and compare them with the potential cost of major repairs or replacements.

Cost of Routine Maintenance

Routine maintenance encompasses activities that you can carry out yourself and professional services. Both come with their own associated costs.

DIY Checks and Replacements

Some DIY checks and replacements, like cleaning or changing filters, come with minimal costs. The price of replacement filters varies, but it’s generally affordable. Moreover, regular cleaning and checks cost little more than your time but can make a significant difference in the efficiency of your AC unit.

Professional Servicing Fees

Professional servicing costs vary depending on the complexity of the service and the rates of the service provider. However, consider these fees as investments that can prevent more significant expenses down the line. Professional maintenance services typically cover thorough cleaning, refrigerant checks and top-ups, electrical connection inspections, and more. These ensure that your AC system remains in optimal condition and prevent small issues from escalating into major ones.

Comparing Maintenance Cost vs Major Repair/Replacement Cost

Regular maintenance costs can seem like an unnecessary expense, especially if your AC unit is currently functioning without apparent issues. However, these costs must be weighed against the potential expense of a major repair or replacement.

Scenarios and Case Studies

Consider a scenario where an ignored minor refrigerant leak leads to compressor failure. The cost of a new compressor, coupled with installation charges, can run into several hundred, if not thousands, of dollars. Contrast this with the cost of a routine professional service, which could have detected and fixed the leak early, thereby preventing the compressor failure.

In another case, a dirty filter left unchecked might cause the AC system to overwork, leading to a complete system breakdown. Again, the cost of system replacement is significantly higher than the cost of regularly cleaning or replacing filters.

These examples underline the cost-effectiveness of regular maintenance. While there are some upfront costs, regular AC maintenance can lead to significant savings in the long run by avoiding the need for expensive repairs or replacements.

The Environmental Impact of Regular Maintenance

It’s not just your wallet that benefits from regular AC maintenance. By keeping your system running efficiently, you also contribute to environmental sustainability. Let’s look at how energy efficiency from regular AC maintenance helps reduce your carbon footprint.

Energy Efficiency and Reduced Carbon Footprint

Air conditioning systems are significant consumers of electricity, especially in a warm city like Brisbane. Therefore, maintaining the efficiency of your AC unit is crucial not only for cost savings but also for environmental sustainability.

How Regular Maintenance Helps the Environment

When your AC system works efficiently, it uses less energy to cool your home, thereby reducing the demand for electricity. This lower demand means less burning of fossil fuels, which is the primary source of electricity production in Australia.

Regular maintenance can help keep your AC system functioning at optimal efficiency, reducing energy usage. It ensures the filters, coils, and fins are clean, ensuring maximum airflow and reducing the system’s workload. It also ensures that refrigerant levels are kept optimal, preventing excessive energy usage.

Savings Beyond Money: The Climate Impact

The climate impact of an efficiently running AC unit extends beyond mere energy savings. When your AC system is running efficiently, it also reduces the emission of greenhouse gases, which are a significant factor in climate change.

Furthermore, regular maintenance can prevent the need for the replacement of your AC unit, thereby reducing waste. The manufacturing, transportation, and disposal of AC units all contribute to carbon emissions and environmental pollution.

By prioritising regular AC maintenance, you can play a role in mitigating the effects of climate change and promoting environmental sustainability. It’s a win-win scenario: while you save money by reducing energy costs and avoiding expensive repairs or replacements, you also contribute to the preservation of the environment.

Tips to Optimise Your AC Performance Between Professional Services

Even with regular maintenance, how you use your AC system can also have a significant impact on its efficiency and your energy costs. Here are some tips to keep your AC running smoothly between professional servicing.

Using Your AC Wisely

While it’s tempting to crank up the AC during Brisbane’s hot summers, using your air conditioner wisely can help maintain its efficiency and save you money.

Setting the Right Temperature

Setting the right temperature on your AC is a balance between comfort and efficiency. Experts recommend a setting between 24-26 degrees Celsius for optimal comfort and energy use during the summer months. Remember, every degree lower than this can increase your energy consumption by up to 10%.

Utilising the Timer and Sleep Mode

Many modern AC units come with a timer and sleep mode functions. Using these features can help reduce energy use by ensuring your AC isn’t running when it isn’t needed. For instance, you can use the timer to switch off the AC an hour before you leave for work or use the sleep mode to adjust the temperature settings automatically during the night.

Other Techniques to Cool Your Home Efficiently

Alongside smart AC usage, other strategies can help keep your home cool and reduce reliance on your AC unit.

The Role of Insulation

Proper insulation can significantly reduce heat gain in your home, reducing the need for constant cooling. Consider investing in quality insulation for your walls, roofs and windows to keep your home cool and reduce the strain on your AC system.

Leveraging Natural Ventilation

Use natural ventilation to your advantage. Opening windows and doors in the cool early morning or evening can help lower the temperature inside your home. Pair this with the use of fans to circulate the cool air, and you’ll find you can reduce the need for constant air conditioning.


Maintaining your AC unit isn’t just about ensuring a cool home; it’s a crucial aspect of home management that provides multiple benefits.

Recap: The Benefits of Regular AC Maintenance

Regular AC maintenance keeps your system running efficiently, reducing energy usage and lowering electricity bills. It prolongs the lifespan of your AC unit, saving you money by delaying the need for costly replacements. Additionally, it helps you avoid expensive repairs by identifying and fixing minor issues before they become major ones.

Taking the Next Steps for AC Efficiency and Savings

You can begin by implementing the tips shared in this post: use your AC wisely, explore natural ventilation, and consider home insulation. Schedule regular professional servicing and carry out routine DIY maintenance tasks. Remember, the costs of these maintenance activities are investments towards the efficiency and longevity of your AC unit and will lead to long-term savings.

Moreover, regular AC maintenance helps reduce your carbon footprint, contributing to environmental sustainability. So, take the next step towards AC efficiency and savings; your wallet, your AC unit, and the environment will thank you for it!

Chris O'brien - Leolec Electrical Services.

Chris O’Brien is the founder of Leolec Services, an electrical company in Brisbane renowned for its dedication to craftsmanship, quality, and innovation. Inspired at a young age by the technical magic behind electrical work in caravan construction, Chris has built a career marked by integrity and high standards. His journey has led him through prestigious projects including the restoration of iconic Brisbane landmarks like Boggo Road Gaol and the Queensland Parliament Building, as well as large-scale multinational projects in the oil, gas, and construction sectors.

With extensive experience in project management, Chris excels in delivering electrical services that are not only safe and reliable but also enhance the functionality and aesthetics of both historic and modern spaces. He is deeply committed to staying abreast of industry advancements, ensuring his team provides the most current and effective solutions to their clients. Passionate about technology and quality, Chris continues to drive his team at Leolec Services to achieve excellence in every project, guaranteeing electrical work that powers quality of life and business efficiency.

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