Full-system condition review
Inspect the generator enclosure, operating environment, visible components, controller history, and signs of wear, damage, or leakage.
Scheduled maintenance that reviews condition, services required components, checks system history, and confirms your standby generator is prepared for the next interruption.

The exact work depends on the equipment and service history, but each visit should leave a clearer picture of condition, readiness, and the next required interval.
Inspect the generator enclosure, operating environment, visible components, controller history, and signs of wear, damage, or leakage.
Address applicable oil, filter, and other scheduled service items according to the installed equipment and maintenance interval.
Review battery condition, connections, charging status, and the generator’s ability to begin its normal start sequence.
Inspect relevant air, cooling, and fuel-system conditions for visible concerns that can affect reliable generator operation.
Review accessible system connections, controller status, and transfer behavior as appropriate for the maintenance scope.
Confirm the generator starts, operates, shuts down, and returns to an appropriate ready state after the service work is complete.
Preventive service is more useful when the condition found, work performed, operational test, open recommendation, and next service timing are documented instead of being left to memory.
Confirm system details, operating hours, controller information, prior service, and any concerns noticed since the last visit.
Review the generator and related backup-power components for wear, damage, leakage, connection concerns, or overdue service items.
Perform the approved maintenance appropriate to the equipment, interval, operating history, and conditions found.
Confirm operation, record the work and open recommendations, and establish the next planned maintenance point.