We performed a comprehensive preventative maintenance service on a Generac standby generator for a home in Montgomery. Our team conducted a thorough inspection of the engine and electrical components to ensure the system remained reliable during power outages. We addressed the internal service alerts and verified the overall health of the standby unit to ensure optimal performance. The service included replacing the oil filter, air filter, and spark plugs with genuine manufacturer parts. We used digital multimeters to test the battery voltage and verify the 120/240V output at the transfer switch and internal terminal blocks. Final diagnostic checks were completed on the Evolution 2.0 controller to confirm the system's exercise schedule and electrical stability.