We performed comprehensive maintenance and diagnostic services on a residential Generac standby generator system in Tomball. Our team inspected the transfer switch, evaluated the electrical panel connections, and addressed system error codes to ensure reliable backup power. We conducted thorough testing of the electrical output using specialized diagnostic tools to verify the system's integrity. The service included replacing the oil filter and installing a new Duracell Ultra lead-acid battery to maintain peak starting performance. We cleared maintenance alerts on the Evolution 2.0 controller and performed a full system reset after verifying the charging circuit. These preventative steps ensure the home remains protected and the generator is prepared for any upcoming power outages.