What typically needs to be done
- Standby-generator service follows the hour/time interval in the manual and commonly includes oil/filter, air filter, spark plug and battery checks as applicable.
- The controller is reviewed for fault history and failed exercise cycles, the enclosure/air path is cleaned and fuel-system condition is inspected.
- A qualified technician may test loaded operation and automatic transfer equipment; transfer-switch/electrical work is not a homeowner task.
What you can check or prepare yourself
- Keep leaves, snow, stored items and vegetation outside the clearances required around the generator.
- Look at the controller/app after scheduled exercise cycles and investigate repeated failed starts or warnings.
- Check for visible oil/coolant/fuel leakage without opening energized compartments.
- Document the service date, engine hours and battery age.
Step-by-step reminder
- Review the generator controller or app for alerts, failed exercise cycles or overdue maintenance.
- Keep the unit's required air clearances free of leaves, snow, stored items and vegetation.
- Schedule the manufacturer's required oil, filter, battery and operating checks at the specified interval.
- Confirm the automatic exercise schedule is enabled and document the service date.
Do not open energized electrical compartments, bypass safety controls or work on transfer equipment unless qualified to do so. Follow generator and fuel-system manufacturer instructions.
Before you start
Review the manual for the exact appliance, system or material in your home before opening panels, disconnecting utilities, changing settings or using chemicals. Model-specific procedures and local installation details can differ from a general guide. Shut off power, water or fuel only when the manufacturer procedure calls for it and you are comfortable identifying the correct control. Stop if the condition you find is different from what is described here.
When to bring in a professional
The homeowner checks above can help you understand the condition of the system and prepare for service, but the higher-risk portion may require specialized tools, safe access, combustion/electrical knowledge, refrigerant work, pressure equipment or a qualified inspection. Use the typical-work list to understand what a proper service visit should cover, and hire the appropriate professional for work outside normal homeowner access.
This guide is general information, not a home inspection or a guarantee that a procedure is suitable for your specific equipment or conditions. Follow manufacturer instructions and applicable codes, stop if anything appears unsafe or different from the guide, and use a qualified professional when appropriate. Read the site terms and limitations.