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When to Replace Your AC Unit: 7 Signs to Watch For


Any Season Heating & Air Conditioning • April 11, 2025

When Should You Replace Your AC Unit?

There are several signs your air conditioning unit will give you when it’s time to retire and be replaced with a new one. With summer right around the corner, the fluctuating spring weather will soon give way to the scorching days of June, July, and August. Now is the perfect time to check your AC unit and ensure it won’t quit on you in the middle of a heatwave.


In this blog, we’ll go over each sign that your AC unit is on its way out, and at the end, we’ll share some tips for extending the life of your AC unit.


1. Age


How old is your AC unit? If it’s older than ten years, it’s likely nearing the end of its lifespan. If your unit is more than a decade old, now’s a good time to consider replacing it before summer. Your old unit may be using R-22 refrigerant, which is becoming increasingly difficult to find and costly to repair. Plus, R-22 is harmful to the environment.


2. Issues with Performance


There are several ways your AC could be underperforming:


  • Blowing Warm Air: An AC unit is supposed to blow cool air. If the air coming from your unit is warm, it could be due to a broken compressor or low refrigerant levels.


  • Poor Airflow: If the airflow is uneven or reduced, there could be an issue with the ductwork or the unit itself.


  • High Humidity: If your home becomes unusually humid while the AC is running, the unit may not be effectively removing moisture.


  • Uneven Temperatures: If some areas of your home are warm while others are freezing, there may be an issue with the AC ductwork.


3. Noise and Odors


If your AC unit is making strange noises like grinding, banging, or screeching, it could signal an internal problem. Additionally, odors such as burning, musty, or moldy smells can indicate it’s time to replace the unit.


4. Frequent Repairs and Rising Costs


If you find yourself frequently repairing your AC unit, it may be time to stop. Similar to a vehicle, there comes a point when it’s no longer worth pouring money into an aging unit. Constant repairs can add up, and continuing to invest in a failing AC will only lead to higher long-term costs.


5. Leaks


Discovering pools of water or refrigerant around your AC unit can be a strong indication that it’s time for a replacement.


6. Clogged Filters


Clogged filters are not always easy to spot, but if they’re full of debris, they’ll restrict airflow and force the AC to work harder. This can lead to increased energy consumption and higher utility bills.


7. Short Cycling


Short cycling occurs when the AC unit frequently turns on and off without properly cooling the house. This could be a sign of a problem with the unit or thermostat.


What Are the Benefits of Replacing My HVAC System?


Replacing your faulty or inefficient AC unit offers several benefits. A new unit with energy-saving features will save you money in the long run, as it won’t have to work as hard as an older unit. New technology also brings programmable thermostats, better air filtration, and enhanced comfort that outdated units simply can’t provide.


How Do I Increase the Life of My AC Unit?


If you don’t have an old unit but want to extend its lifespan, follow these tips:


  • Change Air Filters: Dirty filters restrict airflow and put unnecessary strain on your system.


  • Clear Debris: Keep the area around your outdoor unit free of leaves, twigs, dirt, and branches.


  • Get a Programmable Thermostat: Setting the temperature based on your schedule allows the unit to rest and use energy more efficiently.


  • Have Regular AC Checkups: Routine maintenance is the best way to ensure your AC continues to operate smoothly and efficiently for years to come.


Are You Experiencing Any of These AC Issues in Orland Park or the Chicagoland Area?


If you’ve noticed any of these issues with your
AC unit, and you live in Orland Park, Palos Park, Frankfort, or New Lenox, contact us at Any Season Heating & Air Conditioning. We are a fully licensed, bonded, and insured heating and cooling company, committed to providing dependable and affordable service. Read about our 4.8-star Google rating here!

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