We undertook comprehensive repairs on a Goodman High-Efficiency Gas Furnace, model GMVC961005CN, starting by cleaning the heat exchanger to improve heat transfer and verifying the gas pressure was correctly set for efficient combustion. A new Aprilaire Healthy Home Air Filter, model 213, was inserted to facilitate better airflow and improve indoor air quality. Additionally, we recalibrated the thermostat for accurate temperature regulation and meticulously checked all electrical wiring, securing the furnace's optimal functionality and safety.