8 Warning Signs It’s Time to Replace Your Air Conditioner

In Singapore, a prominent Daikin aircon services company reminds homeowners that the average lifespan of a central air conditioner, according to the United States Department of Energy, ranges from 10 to 15 years. Once this period has elapsed, the AC’s efficiency may decline, warranting a replacement. However, considering the local climate and usage patterns, keeping an eye on other indicators indicating the need for a new unit is crucial.

8 signs your unit should be replaced

One such sign is the declining efficiency of the cooling system. If your AC struggles to keep your home adequately cool despite regular servicing, consider a replacement. Another red flag is when you notice that the temperature settings no longer function correctly, which could indicate a malfunctioning unit.

Given the various factors involved, this Daikin aircon services company in Singapore emphasizes the importance of paying attention to several telltale signs that signal the need for an AC replacement. By being proactive and promptly addressing these signs, you can ensure your home’s comfort and energy efficiency.

1- Your air conditioner is more than ten years old

Unlike other household appliances, air conditioners are often placed outdoors, making them susceptible to harsh weather conditions such as extreme temperatures and snow during winter. These environmental factors significantly reduce their lifespan, leading to rust and corrosion. While older AC models may last around 10 to 12 years, modern units with more advanced materials and better efficiency can endure for 15 to 20 years.

Old Air conditioner

Several variables affect the lifespan of an air conditioner, with proper maintenance being a crucial factor. Regularly maintained units tend to last longer than those poorly cared for, and skipping AC tune-ups can drastically reduce their lifespan. Additionally, the temperature and humidity of your area and whether the AC is appropriately sized for your living space also play a role in its longevity.

Moreover, as air conditioners age, finding mechanical parts for repairs can become challenging due to obsolescence. If malfunctioning parts cannot be replaced, you may have to invest in a new unit.

2- Frequent Breakdowns

An air conditioner that experiences frequent breakdowns, even with regular maintenance, clearly indicates that it should be replaced. Air conditioners commonly malfunction due to clogged filters and worn-out components. The presence of clogged filters can cause significant damage to the fans, coils, and other delicate parts of the AC unit. Over time, these dirty components are likely to break down one after another, and in some cases, a single failing part can lead to the failure of other interconnected components.

When the air conditioner fails to transfer air efficiently across the evaporator coil, it compensates by overworking itself to maintain airflow. This extra strain shortens its lifespan and increases the risk of overheating, eventually rendering it irreparable. Similarly, a malfunctioning fan can disrupt the proper air dispersion throughout your living space, leading to frozen coils. Dirty and frozen coils trap heat inside the unit, causing it to overheat.

Frequent breakdowns can result from the following issues:

  •   Clogged filters cause damage to fans, coils, and sensitive components
  •   Interconnected component failures
  •   Reduced airflow leads to overworked AC and overheating
  •   Malfunctioning fans cause frozen coils and overheating

If your air conditioner experiences frequent breakdowns while still under warranty coverage, we can assist you in processing the warranty claim. Most units come with a 10-year parts warranty and a one-year labor warranty.

In many instances, high repairs can exceed the price of a new air conditioner. When deciding whether to repair or replace your current unit, consider factors beyond immediate repair needs. Sometimes, repeatedly repairing an old air conditioner becomes an inefficient use of funds.

A helpful rule of thumb to help you decide is the “10/repair rule” – multiply the repair cost by the age of your unit. For example, if your repair costs $525 and the AC is 13 years old, the result is $6,825. If this amount exceeds the cost of a new essential air conditioner, we strongly recommend opting for AC replacement for your Boise, ID, home instead of repairing the old unit.

3- High Energy Bills

Experiencing an unexpected and sudden surge in your home’s energy consumption may indicate that your unit is malfunctioning and requires urgent replacement. Your monthly energy bills should remain relatively consistent, fluctuating only during the AC season unless significant changes in energy usage occur. However, if your energy habits have stayed the same, but you are receiving unusually high power bills, it could be a sign that your unit is losing efficiency or has encountered a malfunction.

Newer air conditioners are made to save energy better than older ones. They use thirty to fifty percent less energy to cool your space as effectively. Switching to an energy-efficient air conditioner could cut up to 40 percent off your cooling costs.

Should you notice a notable and unexplained increase in your power bills, to inspect the unit and advise on the best method of action, it is advisable to get the help of a professional. Taking prompt action can help lower your energy bills and prevent further damage and inconvenience.

4- AC unit that uses R-22 Freon

As of January 1, 2023, Freon production has been discontinued in several countries, including the U.S. This development can significantly impact your home air conditioner if it relies on R-22 Freon refrigerant. If your air conditioning unit is at least ten years old, it is likely to utilize R-22 Freon.

R-22 refrigerant has been widely used in central air conditioners, car AC systems, and other cooling equipment for a long time. It effectively absorbs and dissipates heat from spaces. However, recent studies have revealed its detrimental impact on the environment. R-22 is a type of gas that harms the Earth’s ozone layer and worsens global warming. As a result, the Singapore EPA is slowly stopping its use.

If your AC unit relies on Freon, planning for a replacement is essential in case it breaks down. If your unit experiences a breakdown and requires a Freon refill for repair, obtaining one will be challenging due to the discontinuation of R-22 production. Check the nameplate on your home’s AC unit to determine what refrigerant it uses. When replacing your current AC unit that uses R-22 Freon, choose a better option that does not rely on R-22 refrigerant. For aircon gas top up in Singapore, choosing an environmentally-friendly refrigerant option for your AC system is essential.

Gas Top-Up

5- Unusual sounds

If you hear loud and odd sounds from your AC, it may indicate that it’s time for a replacement. When you turn on the system, these noises can include rattling, squealing, and banging. When you encounter such noises, it’s important to immediately turn off the device and seek the assistance of a professional technician to inspect the unit.

Possible causes of the noises:

  •   Slippery belts or broken motor bearings: In many cases, the unusual noises are caused by a belt that     slips  out of its usual place or broken motor bearings.
  •   Unbalanced indoor blower: A banging noise might result from an unbalanced indoor blower.
  •   Failed parts of the sealed unit: A clanking noise could indicate that parts have failed and require       replacement.
  •   Imbalanced blower and outdoor fan: It may be possible that the indoor blower and outdoor fan need to be appropriately balanced. This imbalance could cause them to hit other parts and make noise.
  •   Squealing and squeaking: AC units that produce squealing and squeaking sounds are not normal and should be examined by a licensed technician who can comprehensively evaluate the system.


If you notice any unusual sounds coming from your AC. In that case, it’s best to have it checked by a professional Daikin aircon services company in Singapore to determine if a replacement is necessary.

6- Warm Air Blowing from Your AC

During scorching Boise summers, temperatures can reach as high as 90°F, making a functional air conditioner necessary. If you find that your AC is blowing warm air, it could be an indication of a faulty compressor or low refrigerant levels. Another possible issue is the AC pulling air from unwanted spaces like the attic or outside rather than from the compressor. When faced with this problem, it’s essential to seek the expertise of a technician for repairs. If the repairs prove ineffective, it might be time to consider replacing the unit.

7- Lack of Cold Air

One unmistakable sign that something is wrong with your AC is when it fails to produce enough cold air. A malfunctioning compressor, insufficient refrigerant, or an electrical fault within the system could cause this. The initial step to address the problem is to contact a professional technician. If the repairs are extensive or costly, it might be more practical to contemplate a replacement.

8- Refrigerant Leaks and Moisture Buildup

Leakage or moisture buildup in your AC can be attributed to refrigerant leaks, which can hamper the unit’s performance and lead to higher cooling expenses. Additionally, moisture buildup creates an ideal environment for mold growth, posing potential health hazards. If you observe leaks around your AC, consider a replacement to avoid health risks.

Refrigerant Leaks and Moisture

Make the Right Choice: Repair or Replacement?

When homeowners must choose between fixing or getting a new AC unit, they often feel uncertain. There isn’t a single solution that fits everyone, but the essential things to consider are how well your current unit works and how often it needs repairs. Opting for repairs can be economical when infrequent, but if you frequently need repairs, it might be time to consider a replacement.

At Nature Cool, we understand the importance of your comfort and that of your loved ones in the long run. That’s why we encourage you to make an informed decision that aligns with your budget and your AC unit’s performance. Our expert technicians are here to assist you in assessing the condition of your system and providing transparent recommendations tailored to your specific needs.

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