We performed a comprehensive preventative maintenance service on a residential Generac standby generator in Spring, Texas. Our team inspected the internal engine components and checked the battery health to ensure reliable backup power performance. We verified the electrical connections within the service panel and monitored the system's total runtime hours for accuracy. During this service, we replaced the air and oil filters and conducted diagnostic testing using a digital multimeter. We also updated the system's maintenance log and verified the exercise schedule to keep the unit in peak operating condition. This routine care ensures the homeowner’s emergency power system is ready for any potential utility outage.