How Long Do AC Units Last in Arizona? Real Lifespan, Factors & When to Replace

Arizona homeowners usually consider replacing their cooling system once it starts exhibiting problems. This proactive approach can prevent being without essential cooling once temperatures heat up.

Understanding more about air conditioners can help you make smart decisions in the best interest of your Arizona home.

Typical AC Lifespan & Why Arizona Is Different

In general, air conditioners can last 15 to 20 years. However, AC lifespans in Arizona’s heat vary. Highs of 110-plus Fahrenheit put air conditioners through their paces.

So, how long do air conditioners last in Arizona? Typically, you’d see an Arizona air conditioner stick around for around 10 to 15 years. Several factors influence longevity, including the quality of the installation and the frequency of maintenance.

What Shortens AC Lifespan in Arizona

Arizona summers are long and hot, with an average July high of about 99 degrees. Certain cities are even hotter. For example, Mesa’s average July high is approximately 105 degrees. Reliable air conditioning is crucial for both safety and comfort.

The extreme heat means that ACs run almost constantly from May through September. This strains units and puts wear and tear on components, reducing their lifespan.

Excessive dirt and dust can also lead to premature system breakdowns and failures. They cause components to work harder than necessary, leading to higher energy bills. Both can also clog filters more quickly.

A lack of proper maintenance, especially in this hot, dusty environment, can be detrimental to air conditioners.

Some homeowners believe that installing an oversized AC will make it easier to keep their houses cool and comfortable. However, it could lead to numerous issues, including short-cycling, uneven temperatures, and poor dehumidification.

An undersized unit is also problematic. Constant operation, inadequate cooling, and poor indoor air quality are a few issues that could happen.

Undersized or oversized air conditioners can experience increased wear and tear on components, which can lead to a shorter lifespan and more frequent breakdowns.

Signs Your AC Is Near End-of-Life

You’ll typically notice clear signs that your AC is failing. Indicators include foul odors, unusual noises, and poor indoor air quality. You should also monitor your monthly utility bills. If they’re increasing for no apparent reason, it may signal an underlying AC issue. Weak or no airflow is an additional sign.

The unit’s age can also be an indicator. Air conditioners that are 10 or more years old usually become less efficient and start experiencing problems.

Repair vs. Replace: Decision Points

Determining when to replace your AC is a big decision. It’s important to consider all the factors and weigh the pros and cons, including whether repair might be the better choice.

Age is a primary factor when you’re thinking about repairing or replacing your unit. If your air conditioner is 10 years old or older, it usually falls into the “possibly replace” category. If it’s younger, a repair will typically suffice.

The severity of the problems also impacts whether you need a repair or replacement. For example, if your 15-year-old unit needs significant repairs, replacement is often the more cost-effective choice. Minor problems with a young unit will usually only need repairs.

Homeowners may also want to use the $5,000 rule when considering an AC replacement versus a repair. The formula involves multiplying the estimated cost of repairs by your unit’s age.

A result that’s more than $5,000 usually signals that a replacement is the better choice, while a lesser amount leans toward repairs.

How to Extend AC Life

Replacing your HVAC filter is one of the most important maintenance tasks you can perform. Generally, homeowners should change the filter every three months. However, considering the extreme summer conditions in Arizona, replacing it monthly is ideal.

We also suggest scheduling annual air conditioning maintenance in early spring. This allows us to get your system ready for summer with time to spare before the hot temperatures arrive.

It’s essential to regularly check for any items obstructing the supply vents, as proper airflow is crucial. There also shouldn’t be any items, such as shrubs or outdoor furniture, blocking the outdoor condenser.

If you haven’t used your air conditioner since the previous summer, be sure to schedule maintenance first. It’s not advisable to use the system until we’ve checked the unit. If the air conditioner has existing issues, they can worsen and become more costly to fix if you continue using the system normally.

Schedule a Free AC Evaluation with Western States Home Services

Western States Home Services is a family-owned company that has been helping homeowners for over 15 years. You can count on us for a client-focused approach, which includes a 100% satisfaction guarantee and a price-matching guarantee.

We also provide discounts for teachers, veterans, and first responders, as well as coupons for all customers. Our team provides 24/7 emergency assistance for urgent matters, such as no cooling during a hot summer day.

Call us today to schedule an appointment for AC replacement.

Frequently Asked Questions