How Long Do AC Units Last? When to Replace Your Aircon
Wondering how long your air conditioning unit will last? You're not alone. Many homeowners find themselves pondering the lifespan of their AC systems, especially as the seasons change and the need for a reliable cool breeze becomes a daily comfort.
Typically, a well-maintained air conditioner can last anywhere from 10 to 15 years. But, just like any major appliance in your home, its longevity depends heavily on several factors including the brand, installation quality, usage patterns, and regular maintenance.
Knowing when to replace your aircon rather than repair it can save you money, frustration, and those uncomfortable hours on a sweltering day. In this blog, we'll dive into the telltale signs that your AC unit might be nearing the end of its rope, how to maintain your system to extend its life, and considerations for choosing a new unit when the time comes.
So, whether you're listening to your AC chug along or just planning ahead, you're in the right place to learn all about maximising the life of your air conditioning unit.
Appreciating the Expected Lifespan of AC Units
Maintenance is crucial for air conditioning units. Making informed decisions about servicing comes from understanding their expected lifespan. On average, a well-maintained AC unit should serve you well for about 15 to 20 years.
However, several factors can influence this number, such as the model of the unit, the quality of installation, your local climate and how often the system is used.
To get the most out of your air conditioner, regular check-ups are crucial. This includes yearly inspections by a professional who can ensure everything is operating efficiently and safely. These visits are not just about preventing breakdowns; they can also extend your unit's lifespan by catching issues early, before they become major problems.
Understanding the potential longevity of your aircon isn't just about counting years − it's about proactive care. By keeping up with routine maintenance, you can avoid the inconvenience and expense of premature replacement, ensuring that your home remains comfortable for years to come.
Factors That Affect the Lifespan of Your Air Conditioner
The lifespan of your air conditioner is influenced by several key factors, making some units last longer than others.
Here are the main elements to consider:
Quality and type of unit: Higher quality models from reputable manufacturers tend to last longer due to better components and engineering. The type of air conditioner, whether it's ducted, window or split, also plays a role in its longevity.
Installation: Proper installation by a professional is critical. This is a legal requirement as only trained technicians can handle refrigerants. Incorrect installation can lead to frequent malfunctions and reduced efficiency, which can shorten the life of your AC.
Usage: The amount of usage greatly affects the unit’s longevity. If your air conditioner is running almost all the time, it will likely wear out quicker than a unit in a cooler climate with less frequent use.
Maintenance: Regular maintenance is perhaps the most controllable factor. Annual inspections, cleaning or changing filters, cleaning air ducts and timely repairs can extend the life of your unit significantly.
By understanding and managing these factors, you can help ensure that your air conditioner serves you well for many years, keeping your summers cool and your repair costs lower.
Signs That Indicate It’s Time to Replace Your AC
It can be tough to decide when to replace your air conditioner, but there are several signs that suggest it might be time to say goodbye to your old unit.
Here’s what to watch for:
Age: If your AC is more than 15 years old, it's likely nearing the end of its effective lifespan, especially if you're noticing more frequent breakdowns.
Frequent repairs: Are you calling the heating, ventilation and air conditioning (HVAC) technician more often than you used to? Frequent repairs can be costly and might be a sign that your AC is on its last legs.
Increasing energy bills: If your energy bills are steadily climbing, despite similar usage, your AC's efficiency might be decreasing.
Inconsistent temperatures: If some rooms are too hot while others are too cold, your air conditioner might not be powerful enough anymore, or it could be failing.
Strange noises or smells: Unusual noises or foul smells from your aircon unit can indicate serious problems that are often more economical to replace than fix.
Recognising these signs can help you decide when it's time to invest in a new air conditioner, ensuring you’re not spending more on an ageing unit than necessary.
Selecting a New Air Conditioner
Choosing a new air conditioner is a big decision that affects your home's comfort and your wallet for years to come. Here are some key tips to help you select the right AC for your needs:
Efficiency matters: Look for units with a high SEER (Seasonal Energy Efficiency Ratio) rating. Modern air conditioners are more energy-efficient, which can significantly lower your energy bills.
Size it right: An oversized or undersized AC can lead to inefficiency and comfort issues. It's crucial to have a professional calculate the perfect size based on your home’s square footage, layout, and insulation levels.
Type of AC: Consider the type of air conditioner that suits your home best. Ducted systems, split systems and window units each have their advantages depending on your needs and the layout of your home.
Features: Some modern air conditioners come with features like smart thermostat compatibility, variable speed motors, and improved air filters, which can enhance comfort and improve air quality.
Warranty and support: Always check the warranty offered with the air conditioning unit. A good warranty can save you money on future repairs and maintenance.
Taking the time to choose wisely will ensure you get a reliable, efficient air conditioner that keeps your home comfortable in the heat without breaking the bank.
Maintenance Tips to Extend the Life of Your New AC
Once you’ve invested in a new air conditioner, keeping it in tip-top shape is key to extending its lifespan. Regular maintenance not only ensures efficient operation but also prevents unexpected breakdowns.
Here are some essential tips to help you maintain your new AC:
Regular filter changes: One of the simplest yet most effective maintenance tasks is changing the air filter regularly. A clean filter ensures optimal airflow and efficiency, and it should be replaced or cleaned every one to three months, depending on usage.
Annual inspections: Schedule a professional inspection at least once a year. A certified technician can check for issues that you might miss, such as coolant levels and mechanical wear, and can perform necessary adjustments.
Keep it clean: Make sure the area around your outdoor unit is clear of debris, leaves and dirt. A clean unit runs more efficiently and is less likely to overheat.
Check your thermostat: Occasionally verify that your thermostat is working correctly, as a faulty thermostat can cause your aircon to run more than necessary, increasing wear and tear.
Seal ducts: Ensure that the ductwork is properly sealed and insulated. Leaky ducts can reduce the system’s efficiency by up to 20%.
Following these maintenance tips can help your air conditioner perform at its best for the longest possible time, saving you money and keeping your home comfortably cool.
Maximise Your AC’s Lifespan
While the typical longevity of an AC unit ranges from 10 to 20 years, the exact timing can vary widely based on factors like unit type, usage, and maintenance. Recognising when it’s time to replace your air conditioner rather than continuing to repair an ageing unit can save you money, improve your comfort, and reduce energy consumption.
Pay attention to signs like increased energy bills, frequent repairs and poor performance. When it comes time to choose a new air conditioner, focus on energy efficiency, appropriate sizing, and modern features that enhance comfort and reduce operating costs.
Remember, the key to maximising the lifespan of your new AC is regular maintenance. Simple actions like changing filters, scheduling annual inspections, and keeping the unit clean can make a significant difference.
With the right care and occasional updates, your air conditioning system will serve you well through many summers, keeping your home a cool and pleasant refuge. Keep these tips in mind to ensure your investment is sound and your summers are comfortable.
Jenny Kakoudakis likes to blog about interiors. She launched the award-winning Seasons in Colour in 2014. When she is not chasing criminals out of the financial system (her day job), she gets creative by redecorating her own home.
Download her free bathroom renovation guide here.
