How to Keep Your AC Running in Arizona Heat

Why Arizona HVAC Maintenance Matters

Your AC runs 6–8 months per year in Arizona — far more than in most states. This heavy usage means filters clog faster, refrigerant levels drop sooner, and components wear out more quickly. Regular maintenance is the difference between a system that lasts 15 years and one that fails at 8.

Monthly Tasks You Can Do Yourself

• •Replace or clean your air filter every 30 days during summer (every 60–90 days in cooler months)
• •Clear debris from around your outdoor condenser unit — maintain 2 feet of clearance
• •Check that all vents and registers are open and unobstructed
• •Listen for unusual sounds: grinding, squealing, or clicking indicate a problem
• •Monitor your energy bill — sudden spikes often signal AC inefficiency

Professional Tune-Up Checklist

A professional HVAC tune-up should include these items. If your technician skips any, ask why.

• •Check and top off refrigerant levels
• •Clean evaporator and condenser coils
• •Inspect and tighten electrical connections
• •Test thermostat calibration and operation
• •Lubricate all moving parts
• •Inspect ductwork for leaks and damage
• •Measure airflow and system performance

When to Replace Your AC

If your system is over 10 years old, requires frequent repairs, uses R-22 refrigerant (now phased out), or can't keep your home below 80°F on hot days, it's time to consider replacement. Modern systems are 30–50% more efficient and often pay for themselves in energy savings within 5–7 years.