Electrician Fort Mill | Rock Hill | Johnathon Brown Electric
Your standby generator is only as reliable as the care it receives. With our expert generator maintenance services, you can rest easy knowing your system will work when you need it most—no surprises, no failures.
Whether it’s a Generac, Kohler, or another brand, regular maintenance keeps your generator in peak condition and extends its lifespan. We offer scheduled maintenance plans, one-time service calls, and full system diagnostics for residential standby units.
Already have a generator? We also offer maintenance packages, diagnostics, and repair services to keep your system running year-round.
We offer Yearly Generac generator maintenance (includes oil change, oil filter change, air filter change, spark plug change, and battery test).
We handle:
Fault code diagnostics
Fuel line issues
Transfer switch malfunctions
Battery or starter failures
Engine performance problems
Emergency repairs are available. We also recommend enrolling in an annual maintenance plan to avoid costly breakdowns and ensure compliance with warranty terms.
As certified Generac service providers, we’re trained to service all residential Generac models. Whether you have a Guardian Series or another Generac standby unit, we provide:
If your Generac generator hasn’t been serviced in the past 12 months, it’s time to schedule.
Here’s what we inspect, clean, and test during a standard maintenance visit:
We follow manufacturer-recommended intervals and tailor our checklist based on your generator’s usage and age.
Certified Technicians – Experienced with all major brands
Flexible Plans – Annual, semi-annual, or one-time service
Fast Response – Local support with quick scheduling
Full Reports – After every visit, we provide a detailed inspection report




Most manufacturers recommend running your generator once a week for 15–20 minutes to lubricate engine parts and check for issues. Many systems do this automatically.
Generac generators require oil and filter changes, air filter replacement, battery inspection, and a complete system check at least once a year. More frequent service may be needed based on usage.
Maintenance includes checking oil and coolant levels, cleaning filters, inspecting spark plugs, and running regular load tests. A professional technician can ensure it’s done properly and safely.
A maintenance package provides scheduled, worry-free service and helps prevent unexpected failures during storms or outages. It also helps maintain your manufacturer’s warranty and extends the life of your generator.
Don’t wait for an emergency to find out your generator isn’t working. Book a maintenance visit or sign up for an annual plan today. Call now or request service online for peace of mind that lasts all year.