Signs it's Time to Replace Your Air Conditioning Unit

Published 6/23/2023

With summer quickly approaching, it’s time to make sure that your air conditioner is ready to take on the heat. If you’re having air conditioner troubles, or if you’re starting to doubt the efficiency of your air conditioning unit, it’s important to take care of these issues before it’s too late! But how do you know whether your unit is in need of a repair or a replacement? We’ve put together a list of some telltale signs that your air conditioning unit is in need of a replacement.

Lack of cool air or bad air flow

When you turn your air conditioner on, do you feel like your home is being cooled properly? A common way to tell it’s time to replace your air conditioner is that your air conditioner is not cooling your home. If you notice that the air being distributed throughout your home is not as cool as you’ve set your thermostat, this is a clear sign that your air conditioner may need a repair, or likely to be replaced.

Another sign that you may need to replace your air conditioning unit is that there is a weak air flow when your air conditioner is running. While a dirty air filter could cause a weakened air flow, it’s uncommon for the filter to cause a significant decrease in air flow.

Foul odors

Have you noticed that when your air conditioner is on, an unpleasant smell begins to take over your home? These unwanted odors are most likely caused by an issue with your air conditioning unit. These foul odors can happen for a number of reasons, but the most common is water collection within the unit. This happens when your air conditioner is not draining properly, so water pools up and collects dirt and debris while it sits there with nowhere to go. The longer the water sits there, the more mold and mildew it begins to build.

Increased energy bills

Is your energy bill on the rise? If so, this could be a sign that you need to replace your air conditioner. If you have noticed a significant increase in your energy bill since you’ve started running your air conditioner, there is a very high likelihood that your air conditioner is beyond repair.

When machines function at maximum efficiency, they require less energy, and therefore keep your energy bill rather stable. If you notice a slight increase in your energy bill, this could mean that one or more parts of your HVAC system needs to be cleaned. When you notice a significant increase in your energy bill after you’ve begun using your air conditioner, it’s time to replace your air conditioning unit and bring your energy bill back down.

Constant breakdowns/issues

If you’ve been fighting with your air conditioning unit for some time now, it’s best to call it quits on your current unit and replace it with a new, more efficient model. Not only are constant issues with your air conditioner annoying, they can also get expensive as more repairs are needed over time. Getting rid of your inefficient unit will help you save money on repairs and on your energy bill!

At Mr. Duct, we have experience with and service all air conditioner makes and models. When you choose Mr. Duct for your air conditioner replacement, you can have confidence that our experienced and knowledgeable technicians will get the job done right.

Unit is older than ten years old

When was your current air conditioning unit installed in your home? If it’s been more than ten years (or so long ago you can’t even remember), Energy Star says that it is time to consider replacing your air conditioner. If it has been closer to fifteen years since your current unit was installed, Energy Star recommends that you seriously consider a replacement, as that is the average lifespan of a majority of cooling devices.

NADCA certified and experienced with all makes and models, Mr. Duct is the local HVAC service provider that you can trust. Our expert team members are here to answer any and all questions you may have regarding your air conditioner needs. For more information about our air conditioner replacement services, please visit our Air Conditioner Replacement Page.

To further inquire about services, please feel free to give us a call at (800) 501-4157, email us at, or submit your information via our Contact Page.


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