Generators
Generator Maintenance Checklist: Keep It Ready for the Next Outage
Short answer
Run the generator on load regularly, check oil, coolant, fuel and battery before each use, change oil and filters on the manufacturer's schedule, keep fuel clean and the battery charged, and have it serviced professionally at least once a year. Most standby generator failures are caused by flat batteries, old fuel and neglected servicing.
Weekly or monthly
- Visual check for leaks, loose parts and damage.
- Check oil, coolant and fuel levels.
- Run the generator for 20 to 30 minutes on a load.
- Check the battery and charger.
- Keep the area around it clear and ventilated.
Scheduled service
| Item | Typical timing |
|---|---|
| Engine oil and oil filter | Per manufacturer hours, often every 100 to 250 hours or yearly |
| Air filter | Inspect often; replace as needed |
| Fuel filters | Per schedule; more often if fuel quality is poor |
| Coolant | Check level; replace per schedule |
| Battery | Test yearly; replace when weak |
Follow the manual for your model.
Fuel care
- Use clean fuel and keep tanks fairly full to reduce condensation.
- Drain water from fuel filters.
- Rotate old fuel for standby units.
Service support
A maintenance contract keeps your generator ready. Ask us about generator installation and servicing.
Common questions
How often should I run a standby generator?
Run it regularly, often weekly or monthly, on load for 20 to 30 minutes.
Why will my generator not start?
Common causes are a flat battery, no fuel, old fuel, blocked filters or a stop switch engaged.
Is servicing really needed if it hardly runs?
Yes. Age affects oil, fuel, belts, hoses and batteries even without much use.