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What Is the Life Expectancy of a Generac Generator?

May 16, 2023

Generac generators are reliable and powerful, making them popular for backup power needs; but how long do they last? why?

Generac generators have earned a reputation for their reliability and performance, making them a popular choice for backup power solutions. Whether you're a homeowner, a business owner, or in charge of critical facilities, knowing the life expectancy of a Generac generator is essential for planning and making informed decisions. In this article, we will explore maintenance practices to extend the longevity of your generator and discuss common issues that can affect their lifespan.

What Is the Life Expectancy of a Generac Generator?

Understanding Generac Generators

Generac is a leading manufacturer of both standby and portable generators. Standby generators, also known as backup generators, are permanently installed on a property and automatically provide power during outages. Portable generators, on the other hand, offer flexibility and mobility, allowing you to use them in various locations as needed. The life expectancy of a Generac generator can vary depending on several factors, including the type of generator, usage patterns, maintenance, and environmental conditions.

Factors Affecting Life Expectancy

Generator Type

Standby generators are a type of backup generator that is designed to provide power for an extended period of time. They are typically powered by a fuel source, such as natural gas or propane, and can run for hours or even days without being refueled. Standby generators are often used in critical applications, such as hospitals or data centers, where a power outage could have disastrous consequences.

Compared to portable generators, which are designed for intermittent use and may have a shorter lifespan, standby generators are engineered for extended operation and generally have a longer lifespan. This makes them a more expensive investment, but for many businesses and organizations, the peace of mind that comes with having a reliable backup power source is worth the cost.

Usage Patterns

The frequency, duration, and load capacity at which a generator operates significantly impact its lifespan. Generators used frequently and for prolonged periods, or those serving as the primary power source, will experience more wear and tear compared to those used sparingly or as backups.


Regular and proper maintenance is crucial for maximizing the life expectancy of a Generac generator. Adhering to the manufacturer's recommended maintenance schedule, which includes tasks such as oil and filter changes, spark plug replacements, and battery checks, helps prevent premature wear and ensures optimal performance.

Environmental Conditions

The operating environment plays a significant role in the longevity of a generator. If generators are exposed to extreme temperatures, excessive humidity, high altitudes, or corrosive elements, they may experience accelerated wear. This can result in decreased performance and shorter lifespan. To avoid this, it is important to keep generators in areas that are protected from the elements. Proper installation and protection from environmental factors can help extend the generator's lifespan.

What Is the Life Expectancy of a Generac Generator?

Extending the Lifespan

One of the best ways to keep your appliances running smoothly is to regularly clean and maintain them according to the manufacturer's instructions. This may include such things as dusting coils and cleaning filters. Neglecting to perform these simple tasks can lead to decreased efficiency and, in some cases, early failure. To prolong the life of your Generac generator, consider the following measures:

Regular Maintenance

Adhering to the maintenance schedule outlined in the generator's manual is vital. This includes routine inspections, oil changes, filter replacements, coolant checks, and other essential tasks to ensure optimal performance and longevity.

Proper Usage

Operating the generator within its rated capacity is important to avoid overloading it. Overloading can strain the engine and other components, leading to premature wear and potential damage. Therefore, it is important to be aware of the generator's capacity and to avoid exceeding it.

Fuel Quality

Use clean and fresh fuel as recommended by Generac. Stale or contaminated fuel can cause starting issues, performance problems, and damage to the generator's fuel system.

Adequate Ventilation

Ensure the generator has proper ventilation to prevent overheating. Sufficient airflow is essential for maintaining optimal operating temperatures in electronic equipment. This can reduce the risk of component failure and extend the life of the equipment. In order to ensure sufficient airflow, it is important to carefully consider the layout of the equipment and the airflow paths within the enclosure.

Battery Care

Monitor and maintain the generator's battery according to the manufacturer's instructions. As a generator owner, you are responsible for monitoring and maintaining the generator's battery according to the manufacturer's instructions. This includes keeping the battery charged and replacing it when necessary to ensure reliable starting and operation. Not following these maintenance steps could result in your generator not working properly when you need it most.

Common Issues and Troubleshooting

While Generac generators are designed to be durable, a few common issues may arise over time. Some problems that can affect the lifespan of a Generac generator include:

Fuel System Issues

Regular fuel system maintenance is crucial to ensure the optimal functioning and longevity of a generator. Contamination of fuel, clogged fuel filters, or issues with the carburetor can all negatively affect performance. Using good quality fuel is also important for keeping your generator running at optimum levels.

What Is the Life Expectancy of a Generac Generator?

The life expectancy of a Generac generator depends on various factors, including the type of generator, usage patterns, maintenance practices, and environmental conditions. For optimal generator performance, it's important to follow routine maintenance guidelines, use the generator appropriately, and watch for any signs of deterioration. By doing so, you can guarantee maximum performance and longevity from your generator.

Osburn Services is dedicated to helping you with all of your generator needs. As an authorized Cummins and Generac dealer, we specialize in commercial and residential sales, maintenance, and installation of standby generators throughout Michigan's lower peninsula. We also offer 24-hour emergency service and financing on new generator installations. Call today for a free estimate!


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