Quick Answer
Middle Tennessee summers are hard on air conditioners. Dirty coils, clogged condensate drains, failing electrical parts and restricted airflow cause most midsummer breakdowns, and most of them give warning signs weeks earlier. Change your filters, keep the outdoor unit clear, and have a licensed HVAC technician service the system in spring before the rush. If you're buying a home, the HVAC system is part of every InspectShield home inspection.
By the time July rolls around in Mt. Juliet, Murfreesboro, and Franklin, every HVAC company in the metro is busy. If your system gives out on the hottest afternoon of the year, you may be waiting days for service. A bit of attention in spring is the best insurance against that.
I'm Thomas Smith with InspectShield, and I inspect homes across Wilson, Sumner, Rutherford, and Williamson counties. HVAC is part of every home inspection I do. Here's what every homeowner and buyer should know before the heat arrives.
Why Tennessee Summers Are Brutal on AC Systems
Our climate punishes air conditioners. Long stretches of hot days. High humidity that forces systems to dehumidify as much as cool. Pollen and dust that clog coils. Storm power surges that damage electrical parts. A system that runs fine in May can fail in late July if any one component is borderline.
Age matters too. On an older home, whether the equipment was replaced recently or a long time ago makes a big difference to your first-year costs.
Warning Signs Your AC Needs Attention
Call an HVAC technician sooner rather than later if you notice:
- The house takes longer to cool down, or never reaches the set temperature
- Some rooms are noticeably warmer than others
- Warm or weak airflow from the vents
- Ice on the refrigerant lines or indoor coil
- Water around the indoor unit or a stain on the ceiling below an attic air handler
- New noises: buzzing, clicking, grinding or squealing
- The system short-cycles, turning on and off frequently
- Higher electric bills with no change in how you use the house
The Usual Suspects Behind Summer Breakdowns
These are the problems that show up over and over in Middle Tennessee homes:
- Dirty condenser coils. Pollen and cottonwood seeds wrap themselves around outdoor units every spring. A coil caked in debris can't shed heat, so the compressor works harder and runs hotter.
- Clogged condensate drains. Algae loves the wet, dark drain lines under air handlers. When the line backs up, a safety switch may shut the system off, or the water ends up in your attic or ceiling.
- Failing electrical parts. Capacitors and contactors wear out and are a common cause of a no-cool call. An HVAC technician can test them during a service visit.
- Low refrigerant. Usually means a leak. A good technician finds and fixes the leak rather than just topping it off.
- Dirty or wrong-size filters. Restricted airflow can freeze the indoor coil, cut cooling output and stress the blower motor.
What You Can Do Yourself
You don't need to be an HVAC tech to keep your system healthy:
- Change filters on a schedule, more often if you have pets or allergies. If you can't see light through it, it's overdue.
- Gently rinse the outdoor coil with a garden hose each spring, with the power off at the disconnect.
- Keep shrubs, fences and debris well clear of the outdoor unit.
- Check that the condensate line is draining during the cooling season.
- Listen for unusual sounds and call early when something changes.
Leave refrigerant, electrical testing and anything inside the equipment cabinets to a licensed HVAC technician.
What a Home Inspection Covers
If you're buying, every InspectShield home inspection covers the HVAC equipment, the distribution system and its remaining service life. On older homes we pay close attention to the equipment's age, because the data plate tells you whether you're looking at a recent replacement or a system near the end of its life. Findings go into a written report with photographs, delivered the same day in most cases.
Where airflow or comfort problems call for a closer look, infrared thermography can reveal duct leakage and unbalanced supply behind finished walls and ceilings. If you bought a new build, our 11-month warranty inspection checks HVAC balance, airflow and zoning while the builder is still responsible.
A home inspection is not a service call. It won't measure refrigerant, clean coils or replace parts.
When to Hire a Licensed HVAC Technician
Call a licensed HVAC contractor for:
- A seasonal tune-up in spring for cooling and in fall for heating
- Any of the warning signs above
- Refrigerant, electrical or combustion testing
- Repair and replacement quotes, especially when your inspection report notes an older system
- A second opinion on a system the seller says was recently serviced
Book early. Spring appointments are far easier to get than midsummer ones.
Related Reading
- Why Every Home Buyer in Middle Tennessee Needs a Home Inspection
- What Is an 11-Month Warranty Inspection?
- Sewer Lines in Mt. Juliet: What Buyers Should Know
- How Much Does a Home Inspection Cost in Middle Tennessee?
Frequently Asked Questions
When should I have my AC serviced in Tennessee? Spring, before the cooling season, and fall for heating. Avoid peak season when technicians are booked up.
Does a home inspection include HVAC? Yes. InspectShield evaluates the HVAC equipment, distribution and remaining service life as part of every home inspection.
The home I'm buying has an older AC. Should I worry? Not necessarily, but plan for it. Your inspection report will note the system's age and condition. Ask a licensed HVAC contractor for an evaluation and a replacement quote before you close, so the cost isn't a surprise.
Can I check my own HVAC? You can check filters, the visible condensate line and the outdoor coil. Refrigerant pressure, electrical readings and combustion testing require a licensed technician.
Schedule Your Home Inspection
Buying a home? HVAC is part of every InspectShield home inspection, and for a seasonal tune-up on a home you already own, call a licensed HVAC contractor before the summer rush. Call InspectShield at 615-330-7036, email Tomsmith@getinspectshield.com, or get a quote for a home inspection across Mt. Juliet, Lebanon, Gallatin, Hendersonville, Murfreesboro, Smyrna, Franklin, and the rest of Middle Tennessee.