Conducted HVAC repair, starting with a diagnostic check to identify issues. Found a faulty blower motor capacitor, which was replaced with a compatible model. Inspected the evaporator coil and cleaned it to improve efficiency. Checked refrigerant levels and added R-410A to ensure optimal performance. Examined and tightened electrical connections. Tested the system to confirm proper airflow and cooling. The HVAC unit is now operating at peak efficiency.