How Long Do AC Units Last in Arizona?

If you live in Arizona, you’re fully aware that a properly functioning air conditioning system isn’t just a luxury – it’s a necessity. With temperatures soaring well above 100°F for months on end, your AC unit works harder than almost anywhere else in the country. But with that constant workload, how long can you really expect your air conditioner to last in Arizona’s brutal climate? Let’s break it down.

What Makes Arizona Weather Unique?

Arizona’s desert climate is no joke. The summer heat is extreme, with many areas – including Phoenix and Tuscon – seeing temperatures over 110°F. Unlike humid regions, Arizona’s heat is dry, which reduces some strain on AC components but increases dust buildup.

Monsoon season, which runs from mid-June through September, brings sudden bursts of rain and humidity, adding another layer of wear and tear. This intense and varied climate puts Arizona AC units under constant pressure which can affect their lifespan.

How Long Do Air Conditioners Last in Arizona?

On average, air conditioners last 12 to 15 years in Arizona if they’re properly sized and well maintained. That’s lower than the national average of 15 to 20 years due to the constant heavy usage.

An AC unit in a milder climate might only run a few months a year, but in Arizona, it’s often running for eight or more months at full blast. This non-stop operation accelerates wear and tear, shortening the lifespan.

Factors That Affect Your AC’s Lifespan

Several factors determine how long your AC will last in Arizona:

1. Usage and Workload

The more you use your AC, the faster its components wear out. In Arizona, air conditioners run almost year-round, meaning they age faster than units in cooler climates. Consider adjusting the thermostat to a higher setting such as 78 degrees during the summer.

2. Maintenance and Care

Regular maintenance is the number-one factor in prolonging your AC’s life. Changing filters regularly, cleaning coils, and having annual tune-ups can add years to your unit’s lifespan. Neglecting maintenance can cut its life significantly.

3. Installation Quality and Sizing

A properly installed and correctly sized AC unit will last longer and run more efficiently. An undersized unit will struggle to cool your space, leading to excessive wear and higher energy costs, while an oversized unit may short cycle, reducing efficiency and causing uneven cooling. Poor installation can also lead to issues like refrigerant leaks, improper airflow, and added strain on components.

4. Brand and Model

Not all air conditioners are created equal. Some brands are built to withstand extreme conditions better than others. Investing in a high-quality, energy-efficient model can make a big difference in its performance and lifespan.

5. Arizona’s Dust and Debris

Dust storms and monsoons bring fine dust and debris that can clog filters and coils, reducing efficiency and leading to overheating. Keeping your outdoor unit clean can help prevent premature failure.

The Importance of Regular Maintenance

If you want your AC to last as long as possible, regular maintenance is key. Here’s what you should be doing:

• Change air filters every 1-2 months to keep airflow strong and reduce strain on the system. Clogged filters can restrict airflow, forcing the AC to work harder, increasing energy consumption, and potentially leading to costly repairs.
• Schedule professional tune-ups twice a year (before summer and winter) to catch potential issues early. During a maintenance appointment, a technician will inspect and clean essential components, check refrigerant levels, test system performance, ensure proper airflow, and identify any worn or faulty parts that may need repair or replacement. 
• Check the outdoor AC unit for debris, such as leaves, dirt, or twigs, that may block airflow and reduce efficiency. Keeping the area around the unit clear ensures optimal performance and prevents potential damage to the condenser coils.