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When Do I Replace My Air Conditioner?

An air conditioning unit outside in Sisters, Oregon.

The central air conditioning system is a simple pleasure of everyday life. Your home should be a place where you can relax. On a 90-plus-degree summer’s day in Redmond, OR, cool air is essential to your relaxation. If you take good care of your air conditioner with annual inspections and monthly filter swaps, it should last 10 to 15 years.

“How do I know when to replace my unit or just have it repaired?” is a question we’re frequently asked at AccuAir Heating and Cooling.

Here are three key factors you should keep in mind to inform your decision: Humidity, Age, and Temperature, or H.A.T.


Besides keeping you cool, air conditioning acts as a humidity regulator. If you notice that your house is too humid, your air conditioner might not be doing its job properly. This, especially combined with other symptoms, may mean it is beyond repair.


Just like a car with high mileage, an older air conditioner tends to run less efficiently and may need increasingly frequent repairs.

If you find that your air conditioner is incurring extra costs (increased electric bill and/or repairs), it may be time to replace it soon. If it needs to be repaired annually, it might not need to be replaced right away, but it’s definitely a sign that its expiration date is approaching.

It’s important to be wary of how your air conditioner is holding up and how much money it’s costing you. An old system that frequently falls into disrepair may end up costing you more than a new unit in the long run, and it won’t cool your home properly.

Replacing your unit will save you money overall, improve the air quality of your home, and reduce your carbon footprint.


Pay attention to the stability of the temperatures in your home. Temperature inconsistency doesn’t always mean your air conditioner is totaled. But if your unit is older, and you’re experiencing erratic changes in the air temperature, it may be time for you to replace it.

Our team of trusted professionals at AccuAir Heating and Cooling can give your underperforming HVAC unit an honest diagnosis. We’ll be able to tell you whether replacement or repair is a better choice. We take pride in helping our customers find the best option for a fair price. We’re just a phone call away at 541-504-8400.

Need HVAC Service?

Contact the experts at AccuAir Heating and Cooling.

Call us at 541-504-8400!