
A whole-home generator should be serviced at least once a year to help keep it ready for the next power outage. How often your generator needs maintenance can also depend on how frequently it runs, its age and the manufacturer’s recommendations.
At Grand Bay Electric, we recommend regular annual generator maintenance to catch potential problems early and help keep your system operating properly.
Why Does a Standby Generator Need Regular Maintenance?
Like a car, a standby generator has an engine and other components that need regular maintenance to keep everything running smoothly and efficiently. Even though your generator may sit unused for long periods, it needs to be ready to run for hours, or even days, when an outage occurs.
Regular generator service can help:
- Catch problems early: Identify wear or potential issues before they come larger problems.
- Maintain performance: Help your generator operate efficiently.
- Protect your investment: Help prevent more costly repairs through routine care.
- Prepare for outages: Make sure your system is ready when the power goes out.
What Happens During Generator Maintenance?

Professional standby generator maintenance goes beyond simply checking whether the generator starts.
Depending on the system and its condition, service may include:
- Oil and filters: Checking and replacing them when needed.
- Battery: Inspecting the battery and its condition.
- Fuel system: Checking for potential leaks or other concerns.
- Electrical components: Inspecting connections and system operation.
- System testing: Confirming the generator is operating properly.
Signs Your Generator May Need Service Sooner
Annual maintenance is a good rule of thumb, but your generator may need attention sooner if you notice changes in how it operates. Signs to watch for include:
- Difficulty starting: The generator struggles to start or doesn’t start as expected.
- Unusual noises: New or unfamiliar sounds occur while the generator is running.
- Inconsistent power: The generator isn’t providing steady backup power.
- Visible damage: You notice damage, leaks or other physical concerns.
- Extended run time: Your generator ran for a long period during a recent outage and may be due for maintenance.
If you notice any of these signs, schedule service right away rather than waiting for your next annual maintenance appointment.
Generator Maintenance in Michigan
Routine maintenance can help extend the life of your generator and give you confidence that it’s operating as it should.
Grand Bay Electric’s certified generator specialists provide generator maintenance and service for homeowners throughout West and Northern Michigan. We’re also a certified Generac and Kohler dealer, installer, maintenance and service provider.
Schedule generator maintenance with Grand Bay Electric to keep your system in good working condition.