This project involved diagnosing and repairing a residential air-conditioning system that was not operating properly. Electrical testing and refrigeration gauge readings identified high superheat, low subcooling, and a failing capacitor.
Further examination found no apparent refrigerant leaks. The system was charged with two pounds of R-410A refrigerant, and the failing capacitor was replaced. The evaporator and condenser coils and outdoor condenser fan were also cleaned to improve airflow and heat transfer.
The home’s existing analog thermostat was replaced with a modern programmable/smart thermostat, providing automated temperature control and scheduling while offering the potential for improved energy efficiency and reduced HVAC runtime.
Following the repairs, cleaning, refrigerant adjustment, and thermostat upgrade, the system was tested and restored to proper working condition.
Project Highlights
- Complete HVAC diagnosis and repair.
- Electrical and refrigeration-system testing.
- Identification of high superheat and low subcooling.
- Replacement of failing capacitor.
- No apparent refrigerant leaks identified.
- Addition of two pounds of R-410A refrigerant.
- Evaporator and condenser coil cleaning.
- Outdoor condenser fan cleaning.
- Replacement of analog thermostat with a programmable/smart thermostat.
- Automated temperature control and scheduling.
- Improved energy-management capabilities.
- Final operational testing and system restoration.
