We performed a comprehensive HVAC maintenance and diagnostic service for a residential property in Sonoma. Our team inspected the American Standard furnace and outdoor condenser unit, identifying and addressing performance issues to bring the system back to factory specifications. We replaced compromised sections of the ductwork with new 12-inch rigid ducting to improve airflow and system integrity throughout the utility area. Our technicians also conducted thorough electrical testing, including capacitor and flame sensor verification, to ensure safe and reliable operation. In addition to these repairs, we deep-cleaned the condenser coils and removed accumulated debris from the exterior unit to maximize cooling efficiency. This complete service restored the performance of the climate control system and verified the integrity of all electrical and mechanical components. These precise adjustments and cleanings ensure the HVAC system provides consistent, energy-efficient comfort for the home year-round.