When Your AC Stops Cooling: A Knoxville Homeowner’s Relief

Explore our Heating and Air Conditioning services. If you live in Knoxville, check out our Heating and Air Conditioning in Knoxville page.

A Case of the Fading Breeze

One sizzling afternoon, a homeowner in Knoxville noticed their air conditioner was running but the air blowing into the house felt warm. With temperatures climbing, this loss of cool air quickly became an urgent problem. The homeowner reached out to HEP, and a HEP technician was dispatched to diagnose the issue.

How the Problem Was Solved

Upon arrival, the HEP technician confirmed that the fan blades weren’t stuck and the motor spun freely. Suspecting an electrical component, the technician used a clamp meter to check a small device called a capacitor—a part that helps the fan and compressor kick on. The test showed the old capacitor wasn’t storing or releasing energy as it should.

After removing the worn part, the technician installed a new capacitor and performed a full performance check. Temperatures and system pressures were measured to ensure everything matched the manufacturer’s specifications. Within minutes, cool air was flowing again, and the system hummed quietly and efficiently.

To wrap up, the HEP technician cleaned the evaporator coil and inspected the air handler, leaving the entire system in peak condition.

A final look at the indoor unit confirmed proper airflow and stable operation.

Tips for Homeowners

• Listen for early warnings: Rattling, buzzing or weak airflow can signal an aging part.
• Keep the area clear: Maintain at least two feet of clearance around your outdoor unit.
• Schedule annual inspections: Routine tune-ups catch small issues before they turn into breakdowns.
• Rely on professional tools: Qualified HEP technicians use the right meters and expertise to diagnose problems quickly and safely.

Living in Knoxville means summer heat is part of daily life. With regular upkeep and timely service from HEP technicians, you can count on your air conditioning to keep you cool and comfortable all season long.