Electrician Fort Mill | Rock Hill | Johnathon Brown Electric

Home Generator Maintenance

home generator maintenance

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.

Generator Maintenance & Repair

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:

  • Generator parts
  • Generator battery replacement
  • 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.

Generac Generator Maintenance

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:

  • Generac-specific diagnostics and software updates
  • Genuine OEM parts
  • Compliance with Generac’s recommended service intervals
  • Warranty-friendly maintenance and documentation

If your Generac generator hasn’t been serviced in the past 12 months, it’s time to schedule.

Generator Maintenance Checklist

Here’s what we inspect, clean, and test during a standard maintenance visit:

  • Oil and filter change
  • Air filter replacement
  • Battery inspection and voltage test
  • Coolant level check
  • Fuel system check (natural gas/propane)
  • Spark plug inspection or replacement
  • Load test and automatic transfer switch check
  • Software updates (for smart-enabled models)
  • Run cycle test

We follow manufacturer-recommended intervals and tailor our checklist based on your generator’s usage and age.

Why Choose Us?

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

Home Generator Maintenance FAQs

How long should I run my generator for maintenance?

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.

 

What maintenance is required for a Generac generator?

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.

 

How do I maintain a generator?

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.

 

Why do I need a generator maintenance package?

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.

Schedule Your Generator Service Today

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.

For Your Home Generator Problems

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