6 Top Signs It’s Time to Replace Your Old AC Unit
Air conditioners can be lifesavers in the summer. However, like all appliances, they don’t last forever. If your AC unit is beginning to tucker out, it might be time to think about air conditioner replacement.
The question is, “How do you know when your AC unit is on its last leg?”
Well, that’s exactly what we’re here to look at today! As a company that’s specialized in AC replacement in Vancouver, WA, since 1960, we know a thing or two about when to replace an AC unit.
Here are six signs you need a new AC unit and why it could be the best decision for your home.
Your AC is 10 to 15+ Years Old
Most modern air conditioners are built to last between 15 to 20 years—but that doesn’t mean they’ll perform efficiently the entire time. If your system is around 15 years old, it’s a good time to start considering free replacement quotes.
And if it’s closer to 12 years, especially if it’s been heavily used, poorly maintained, or recently needed costly repairs, planning ahead is a smart move.
Older AC units often continue running, but not without drawbacks: they tend to be less energy-efficient, more prone to breakdowns, and costlier to operate.
And while many older systems were built to last longer, today’s models are more advanced (and complex), meaning they don’t always match the longevity of past generations.
Proactive planning can help you avoid surprise breakdowns during the hottest months—and give you time to choose a replacement air conditioner that fits your needs and budget. Plus, newer systems are designed with energy efficiency and eco-friendlier refrigerants in mind, which can help you save money and lower your home’s environmental impact.
In essence, replacing your old AC unit with a newer, more efficient model can help you save on energy costs in the long run.
Your Energy Bills Keep Increasing
If you’ve noticed that your energy bills are creeping higher each year, even though you're not using your air conditioner more, it could be a sign that your AC isn’t as efficient as it used to be.
As units get older, they tend to lose their cooling power, which causes them to run longer and use more energy to cool your home. If you want to save on energy costs, the best thing you can do is make the upfront investment and get a new, energy-efficient air conditioner with a higher SEER (Seasonal Energy Efficiency Ratio) rating.
You’re Scheduling Frequent Repairs
One of the most obvious signs that it’s time for a new AC unit is if it keeps breaking down.
Frequent repairs can add up. Over time, you may end up spending hundreds, if not thousands, of dollars to keep your system running. You may be tempted to continue fixing your older system. But, eventually you might find that the cost of repairs is more than the cost of an air conditioner replacement.
At some point, you have to determine the most cost-effective option.
Knowing whether to replace or repair is the hard part. If you're unsure, schedule an assessment with a professional to weigh the costs!
Inconsistent Cooling or Hot Spots in Your Home
Do you feel like the temperature in your home is never consistent? Are certain areas always warmer or cooler than others?
Inconsistency is often the consequence of poor airflow or ductwork issues. Start by having your ductwork inspected. If the consensus is that your ducts aren’t the issue, it’s likely the age of your air conditioner.
If your system can’t keep up with the demands of your home, replace it with a newer, more powerful model.
Your AC Uses R-22 Refrigerant
The HVAC industry is finally heading to a more sustainable future, and the biggest innovation over the past few years is new refrigerant.
If your air conditioner still uses R-22 refrigerant (otherwise known as Freon), it’s definitely time to think about a replacement.
R-22 has been phased out due to its harmful impact on the environment, and it’s becoming harder and more expensive to find. Refilling an R-22 system can be expensive, and it may not even be an option if your AC breaks down.
Newer systems use R-410A, which is a more eco-friendly and energy-efficient refrigerant that’s compatible with modern technology.
Strange Noises or Odors Coming from the Unit
Do you have some unusual sounds and smells coming from your air conditioner? Take them as a cause for concern!
They can come in all forms, and certain noises and smells mean different things. If you hear grinding, squealing, or rattling noises, it often means that some of the internal components are worn out or damaged.
If there’s a musty odor whenever your AC unit is on, it’s probably a sign of mildew or mold inside the unit or the ductwork.
It’s worth noting that some issues are easy to repair. However, if the noises and odors coming from your HVAC are frequent, it might be time to throw in the towel and upgrade to a new system.
First, we recommend scheduling a professional inspection to assess whether replacing the unit would be the most practical solution.
When in Doubt, Get an AC Assessment
If you’re unsure whether your AC needs to be replaced, the best course of action is to schedule an inspection with a trusted HVAC professional.
With a thorough assessment, you can better determine the true condition of your air conditioner and see whether or not replacement is the right choice.
At Miller’s Heating & Air, we offer honest evaluations and work with you to find the best solution for your home, whether that means repairing your old AC or upgrading to a more energy-efficient system.
When It’s Time, We’re Here to Help
Replacing your old AC unit might be the smartest investment you make all year, especially if you want to enjoy a more comfortable home and lower energy bills.
If you notice any of the six signs listed above, it may be time to consider upgrading to a new, more efficient model.
Let our team at Miller’s Heating & Air guide you through the process and help you make the best choice for your home. Contact us today to schedule a consultation and see what makes us a top company for HVAC replacement in Vancouver, WA.
