The 15–20° Test That Tells You If Your AC Is Healthy

Want to know if your AC is actually running efficiently — without calling anyone? Here are two quick tests you can do at home 👇

Test 1: The thermostat drop:
Set your thermostat to cool. A healthy system should drop the indoor temperature by at least 1° every 30 minutes. (Outdoor heat affects this, so treat it as a rule of thumb.)

Test 2: The "Delta T" temperature difference:
Measure the air temperature at your return (near your filter) versus the air coming out of a supply register. A well-performing system usually shows a 15–20° difference. That gap is what HVAC pros call Delta T — it's a fast, reliable read on efficiency.

The bigger takeaway:

Most AC breakdowns we see in Nashville could have been prevented with a professional tune-up. Vital components wear down, and a tune-up catches problems before the summer heat exposes them.

So when is the best time to schedule an AC Tun-Up? Spring! Before the heatwave starts.

Availability gets very tight once peak season hits, so booking early means you're not stuck waiting when you need cooling most.

Ready to get ahead of the heat? Give Parthenon Plumbing Heating & Cooling a call.

📞 Call/text: 615-298-2995

🌐 https://parthenonplumbing.com/ac-maintenance-tune-up-nashville-tn/

📍 Proudly serving Nashville and surrounding areas

#HVAC #ACMaintenance #ACTuneUp #AirConditioning #Nashville #NashvilleHVAC #HomeServices #HVACtips #ACEfficiency #Shorts

Видео The 15–20° Test That Tells You If Your AC Is Healthy канала Parthenon Plumbing, Heating, & AC Repair