A homeowner in Mason, TX reached out because both HVAC systems were running constantly, and one wasn’t heating properly. He suspected low refrigerant. When our team at 72 Degrees Air Conditioning, Heating, and Plumbing arrived, we found two 15–16-year-old systems that were indeed low on R-410A and showing signs of wear. After adding refrigerant, replacing a failed capacitor, and inspecting the evaporator coils, we were able to restore operation and provide clear recommendations for next steps.
Job Overview
- Location: Mason, TX
- Client Type: Residential
- Scope: Diagnostic service call on two aging HVAC systems, refrigerant recharge, component replacement, system evaluation
- Equipment Installed: 40/5 capacitor
- Additional Work (if any): Added 3 lbs R-410A refrigerant to main system, added 4 lbs R-410A refrigerant to secondary system
Why It Mattered
When an HVAC system runs nonstop or struggles to heat and cool properly, it drives up energy bills and puts extra strain on aging equipment. That’s often when it’s time to consider professional AC repair to address refrigerant leaks, failing components, or airflow issues before they turn into major breakdowns. Catching these problems early can help homeowners avoid bigger repairs and unexpected system failures.
What We Found
Both systems were approximately 15–16 years old. The main living area unit was low on refrigerant and had visible signs of leakage at the evaporator coil. The bedroom unit was also low on refrigerant and had a failed 40/5 capacitor, which was preventing proper operation.
Low refrigerant doesn’t just affect comfort, it usually means there’s a leak somewhere in the system. While adding R-410A restores cooling temporarily, leaking coils will allow refrigerant to escape again over time. With systems this age, repairs can become more frequent and costly.
The Solution
We performed a full diagnostic on both systems to confirm refrigerant levels and check major components. Our technician added 3 pounds of R-410A to the main system and 4 pounds to the secondary system to restore proper pressure levels. We replaced the failed 40/5 capacitor on the bedroom unit to ensure safe startup and operation.
After completing the refrigerant recharge and component replacement, we tested both systems for proper airflow, temperature split, and performance. We also discussed the condition of the leaking evaporator coil and provided pricing options for coil replacement as well as full system upgrades, including higher-efficiency options that meet today’s standards.
Photo Highlights
Rusted evaporator coil showing signs of corrosion and refrigerant leakage.
Two aging outdoor condenser units serving separate zones of the Mason home.
Attic-mounted Carrier air handler inspected during service visit.
The Results
Both systems were restored to working condition and operating safely at the time of service. The homeowner now has a clear understanding of why the refrigerant was low and what to expect moving forward. With documented coil leaks and aging equipment, he can make an informed decision about repair versus replacement before the next Texas heat wave arrives.
AC Repair in Mason TX – Trusted Service from 72 Degrees
For homeowners needing AC repair in Mason, TX, 72 Degrees Air Conditioning, Heating, and Plumbing provides honest diagnostics and straightforward recommendations. Whether your system needs refrigerant, a component repair, or it’s time to consider an upgrade, our team is here to help. Schedule a quote and get expert guidance you can trust.
