Get Your AC Ready for a Triple-Digit Lawton Summer

Lawton's cooling season is a marathon — first 90-degree days can arrive in April, and August routinely strings together weeks of 100-plus afternoons with hot south winds that never let the house cool down overnight. The system that coasts through spring gets tested hard by July. An hour of prep in April beats a breakdown call in a heat wave.

The Homeowner's Checklist

• Replace the filter — and calendar monthly checks through dust and cottonwood season
• Clear two feet of space around the outdoor unit; weeds, mulch and grass clippings choke airflow
• Rinse condenser fins gently with a garden hose, power off, spraying from inside out
• Flush the condensate drain cleanout with a cup of distilled vinegar
• Test the system on a mild day — catch problems before the schedule fills up

What a Professional Tune-Up Adds

DIY prep covers the surfaces; a tune-up covers the system. We check refrigerant charge against manufacturer spec, test the capacitor and contactor (the two parts most likely to fail in a July heat streak), tighten electrical connections loosened by storm-season vibration, measure temperature split across the coil, and verify the thermostat is calibrated.

Most manufacturers also require documented annual maintenance to keep parts warranties valid — a spring visit protects that coverage before the season that most likely triggers a claim. Schedule in March through May and you'll have your pick of appointment times; wait for the first triple-digit streak and everyone in Lawton is calling at once.