The triple-digit heat is coming, and in the West Valley, it often arrives sooner than expected. In fact, March 2026 has already broken records with the earliest 100-degree day in Phoenix history!

As we approach May, the “real” summer heat is about to settle in for the long haul. At Pro Solutions Air, we want to make sure your home stays a sanctuary, not a sauna. Before the next heatwave hits Surprise, follow this essential checklist to ensure your AC unit is ready for the “eight-month gauntlet” of Arizona summer.


1. The Monthly Filter Swap

In our dusty desert climate, a standard 1-inch filter can clog in as little as 30 days. A dirty filter restricts airflow, forcing your system to work twice as hard and significantly increasing your electric bill.

  • Action: Check your filter today. If it’s grey or fuzzy, swap it out.
  • Pro Tip: Use a filter with a MERV rating between 8 and 11. It’s the “sweet spot” for capturing Arizona dust without suffocating your AC motor.

2. Clear the “Breathable” Space

Your outdoor condenser unit needs to “breathe” to release the heat it pulls from your home. If it’s crowded by desert broom, weeds, or storage boxes, it will overheat and potentially shut down.

  • Action: Ensure there is at least a 2-to-3-foot clearance all the way around your outdoor unit.
  • Pro Tip: Gently hose down the outside fins of the unit (while it’s off!) to remove built-up dust and caliche. Avoid using a high-pressure power washer, as it can bend the delicate metal fins.

3. The Thermostat “Dry Run”

Don’t wait for a 110-degree afternoon to find out your cooling mode isn’t engaging.

  • Action: Switch your thermostat to “Cool” and set it a few degrees below the current room temperature. Listen for the outdoor unit to kick on and feel the vents for a noticeable drop in temperature within 10–15 minutes.
  • Pro Tip: If you’re still using an old manual thermostat, consider upgrading to a smart thermostat. Many Surprise residents qualify for rebates from APS or SRP!

4. Inspect the Condensate Drain Line

Your AC doesn’t just cool the air; it removes humidity. That moisture has to go somewhere. If the drain line is clogged with algae or dust, that water can back up into your home or trip a safety switch that kills your power.

  • Action: Look at the white PVC pipe near your outdoor unit. If you see standing water or heavy sludge, it’s time for a flush.
  • Pro Tip: Call a professional to blow out the drain line.

5. Schedule Your Professional Tune-Up

Some things are best left to the pros. A Pro Solutions Air technician does a deep dive that goes beyond the surface:

  • Checking Refrigerant Levels: Low levels usually mean a leak, which will cause your system to freeze up during a heatwave.
  • Tightening Electrical Connections: Arizona heat causes wires to expand and contract, which can loosen terminals and lead to a blown capacitor.
  • Testing the “Start-Stop” Components: We ensure your motor and compressor aren’t drawing “high amps,” which is a leading cause of mid-summer breakdowns.

Never a Problem, Just a Solution!

Don’t let the first big heatwave of May catch you off guard. A little prep now prevents a big headache (and a hot house) later.

Is your AC ready for the Surprise heat? Schedule your Pre-Summer Tune-Up with Pro Solutions Air today! or call us at 623-250-2686. We’re proud to serve our neighbors in Surprise, Glendale, Peoria, and across the West Valley!