8 Clues to Tell When Your AC Unit Must Be Replaced

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Air conditioning is essential to your home, especially during the hot summer. It provides cool air, making your living space comfortable and enjoyable. However, just like any other appliance, it has a lifespan and will eventually need to be replaced. But how do you know when to replace your air conditioning unit? 

In this blog, we will check out clues that indicate your air conditioning unit may be nearing its end and needing replacement.

1. Age of the Unit

The first clue is the age of your air conditioning unit. Most air conditioners have a limit of 10 to 15 years. If your team is approaching this age or has already surpassed it, you should start considering a replacement. As your air conditioner ages, it may become less efficient and more prone to breakdowns. Replacing an old unit with a new, energy-efficient model can save you money on energy bills and reduce your carbon footprint.

2. Frequent Repairs

If you constantly call an HVAC technician to repair your air conditioning unit, it may be a sign that it’s time for a replacement. Frequent repairs can be costly and inconvenient, and it may turn into more cost-effective to change the unit rather than continue to repair it. Additionally, constantly repairing your unit can signal that it can no longer function efficiently or effectively.

3. Increased Energy Bills

If you recognize a sudden spike in your energy bills, it could indicate that your air conditioning unit is no longer working efficiently. As your unit ages, producing the same cool air may require more energy. Upgrading to a new, energy-efficient model can help lower your energy bills and reduce your overall energy consumption.

4. Uneven Cooling or Inadequate Temperature Control

If you notice that some rooms in your home are cooler than others or your air conditioner is struggling to maintain the desired temperature, it may be a sign that your unit is no longer functioning properly. This could be correctly a variety of reasons, such as a failing compressor, leaky ductwork, or a lack of proper insulation. An inefficient air conditioning system will not provide optimal comfort in your home, and it may be time to consider a replacement.

5. Excessive Noise or Strange Odors

Unusual noises or smells from your air conditioning unit are never a good sign. If you hear grinding, squealing, or banging noises, it could indicate a severe issue with your unit’s internal components. Similarly, if you notice a musty or burning smell, it could signify mould growth or an electrical issue. In either case, getting a Daikin air conditioner installation and replacement is essential.

6. Frequent Cycling On and Off

If your air conditioning unit is constantly cycling on and off, it could be a sign that it’s struggling to maintain the desired temperature in your home. This can contribute to increased energy consumption and higher energy bills. A professional HVAC technician can investigate the issue and determine if a replacement is necessary to enhance the overall efficiency of your cooling system.

7. Leaking or Excessive Moisture

A properly functioning air conditioning unit should not produce excessive moisture or leaks. If you spot water pooling around your unit or excessive condensation on your windows, it could indicate a problem with your unit’s drainage system or refrigerant levels. Not only can this lead to decreased efficiency and potential damage to your home, but it can also generate a breeding ground for mould and mildew. In this case, it’s crucial to have your unit inspected and possibly replaced to prevent further damage and health hazards.

8. Decreased Indoor Air Quality

Your air conditioning unit plays a significant role in maintaining good indoor air quality. If you detect an increase in dust or allergens, or if your home feels more humid than usual, it could be a sign that your unit is no longer effectively filtering and dehumidifying the air. A Daikin air conditioner installation may be necessary to improve your home’s indoor air quality and prevent potential health issues.


Your air conditioning unit is crucial to your home’s comfort and indoor air quality. By paying attention to these eight clues, you can determine when it may be time to replace your unit and invest in a more efficient and reliable system. Consult a professional HVAC technician to evaluate your unit’s condition and recommend the best action. 

Daikin Dealers Toronto, represented by Climate Experts, offers an exceptional range of affordable and reliable repair and installation services for all Daikin furnaces, air conditioners, and heat pumps. As an authorized Daikin Toronto dealer, our highly trained technicians are well-versed in all conditions of Daikin products, ensuring that customers receive the best possible solutions for their specific requirements. Contact us today if you require routine maintenance, emergency AC repairs, or a complete Daikin air conditioner installation in Toronto.

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