Heating and Air Conditioning
Knoxville
Heating and Air Conditioning in Knoxville
Keeping the Cool Flowing: A Knoxville HVAC Replacement Story
It was a scorching morning in Knoxville when a homeowner noticed their upstairs air conditioner icing over and running nonstop—yet the house never reached a comfortable temperature. Despite a recent unit purchase and routine tune-ups, this older system was low on refrigerant and simply couldn’t keep up with the summer heat.
Thanks to a prompt visit from a HEP technician, the issue was pinpointed and resolved with a full system upgrade. Here’s how the situation unfolded, and what every homeowner can learn to stay cool and comfortable.
The Case: When an AC Freezes Up
Air conditioners can build up ice on their coils if they’re low on coolant, have restricted airflow, or suffer from aging components. In this home, the second unit was over a decade old and leaking refrigerant, so it iced up whenever it ran. The result? Warm rooms, high energy use, and frequent shutdowns by the homeowner to let the system thaw.
Watch for these warning signs:
- Frost or ice on the outdoor condenser or indoor coils
- Blowing warm air despite running at full blast
- Longer run times without reaching the set temperature
Regular inspections by a qualified HEP technician can catch these symptoms early and prevent a full breakdown.
A Full System Replacement
After evaluating the aging equipment, options ranged from patch-up repairs to a complete replacement. With long-term performance and a strong warranty in mind, the homeowner chose a modern 2½-ton split system, including:
- A high-efficiency indoor coil
- A durable condensing unit
- An 80% AFUE gas furnace
The HEP technician handled every step—rigging up new refrigerant lines, installing a sealed drain pan, and calibrating safety devices to ensure trouble-free operation.
What to Expect from a Professional Installation
- Precise equipment sizing and system design
- Safe refrigerant handling and electrical wiring
- Proper sealing and insulation of ductwork and piping
- Installation of safety float switches to prevent water damage
Inside the attic, the new air handler and pristine ductwork instantly replaced the dusty, worn-out setup—bringing both efficiency and reliability to the heart of the cooling system.
Caring for Your New System
Investing in a new HVAC system is just the first step. Keep it running smoothly with these simple tips:
- Replace air filters every 1–3 months to maintain airflow.
- Clear leaves, grass, and debris away from the outdoor unit.
- Check condensate drains for clogs that trigger safety shut-offs.
- Schedule an annual tune-up with a HEP technician each spring.
A quick glance at the outdoor pad and refrigerant line insulation can reveal if any components need attention before peak season.
Warranties and Peace of Mind
To protect their investment, the homeowner took advantage of comprehensive coverage:
- 10-year parts limited warranty
- 1-year labor warranty
- 2-year loyalty plan
Should any issue arise, a certified HEP technician will restore comfort without unexpected costs.
Long-Term Comfort in Your Home
Upgrading an outdated AC system in Knoxville isn’t just about lower temperatures—it’s about reliable performance, energy savings, and year-round comfort. By choosing professional installation and sticking to routine maintenance, you’ll enjoy a cool, efficient home for many seasons to come.
If you spot ice forming on coils, hear unusual noises, or simply want to prepare for summer, don’t wait. Reach out to HEP today for an expert inspection and keep the cool air flowing smoothly all year long.
Published on October 20, 2025
