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Generac XT8500EFI Problems: (Solution & Troubleshooting Tips) of 2023

If you’re the owner of a Generac XT8500EFI generator, you may encounter issues at some point during its use. These issues can range from minor to more serious problems that require professional repair.

In this article, we’ll explore some of the common Generac XT8500EFI problems that owners may face, as well as potential solutions to address these issues. Whether you’re experiencing starting difficulties or other performance-related concerns, we’ve got you covered.

generac xt8500efi problems

Generac XT8500EFI Problems

Here are some common Generac’s XT8500EFI problems that owners may encounter:

  1. Starting difficulties – This is a common issue that can be caused by various factors, including a weak battery, clogged fuel filters, or a faulty starter motor.
  2. Fuel-related issues – Fuel problems can include issues such as clogged fuel filters, contaminated fuel, or problems with the fuel pump. These issues can cause the generator to run poorly or not at all.
  3. Oil leaks – Leaks can occur from various parts of the generator, including the oil filter or oil pan. These leaks can cause oil to spill onto the ground, potentially causing damage to the generator or surrounding areas.
  4. Overheating – Overheating can be caused by a variety of issues, such as a malfunctioning thermostat, clogged air filters, or low coolant levels. This can cause the generator to shut down or even become damaged.
  5. Electrical problems – Electrical issues can include problems such as damaged wiring, malfunctioning circuit breakers, or issues with the alternator. These issues can cause the generator to lose power or not start at all.

Overview of the Generac XT8500EFI Generator

Generac 7247 XT8500EFI 8,500-Watt Portable Generator

The Generac 7247 XT8500EFI is a powerful and portable generator with a wattage output of 8,500 watts. It is designed to provide reliable backup power in case of emergencies or for outdoor activities. The XT8500EFI features electronic fuel injection for improved fuel efficiency and easy starting.

It offers a range of outlets to accommodate different power needs and comes with a durable frame for added protection.


  • High Power Output: The Generac XT8500EFI Generator offers a robust wattage capacity, providing ample power to run multiple household appliances, power tools, and essential equipment during outages or outdoor activities.
  • Electronic Fuel Injection (EFI): The EFI system in this generator ensures efficient fuel delivery, optimizing fuel consumption, reducing emissions, and enhancing overall performance.
  • Electric Start: Many models of the XT8500EFI come equipped with an electric start feature, making it easy to start the generator with the push of a button, eliminating the need for manual pulling.
  • Multiple Outlets: It typically includes various outlets, such as standard household plugs and twist-lock outlets, offering versatility in connecting different devices and accommodating various power needs.
  • Portability: Despite its power capacity, the Generac XT8500EFI is designed with wheels and a handle, making it relatively easy to move and transport to different locations.
  • Low Oil Shutdown: The generator is often equipped with a low oil shutdown feature, automatically shutting off the engine when the oil level is too low, protecting the engine from damage.


  • Noise Level: Like many conventional generators, the Generac XT8500EFI can produce considerable noise during operation, which might be a concern in noise-sensitive environments.
  • Heavyweight: Due to its higher power output and robust construction, this generator can be quite heavy, making it more challenging to transport, especially for individuals with limited physical strength.
  • Price: The Generac XT8500EFI Generator might be relatively more expensive compared to smaller, lower-capacity generators, which could be a drawback for budget-conscious buyers.

Common Problems Faced by Generac XT8500EFI Users

Here are The Common Problems Faced by Generac XT8500EFI Users

Issue 1: Starting Problems

One of the most common issues reported by Generac XT8500EFI users is difficulty in starting the generator. This can be attributed to various factors, such as a low battery charge, a clogged fuel line, or a malfunctioning starter motor.

To troubleshoot this problem, it is recommended to check the battery charge, inspect the fuel line for any blockages, and ensure the starter motor is functioning correctly.

Issue 2: Fuel Efficiency Concerns

While the XT8500EFI is designed to be fuel-efficient, some users have expressed concerns about its consumption. If you notice unusually high fuel consumption, it is advisable to check for potential causes such as a dirty air filter, improper fuel mixture, or excessive load on the generator.

Regular maintenance, including cleaning or replacing the air filter and using the correct fuel-to-oil ratio, can help improve fuel efficiency.

Issue 3: Noise Levels

Noise levels can be a concern, particularly in residential areas or camping sites where quiet operation is desired. Although the Generac XT8500EFI is equipped with noise-reducing features, some users may still find the noise levels higher than expected.

To mitigate this issue, consider placing the generator on a noise-dampening mat or using a soundproof enclosure. Additionally, maintaining proper distance and ensuring the generator is well-maintained can help minimize noise.

Issue 4: Maintenance Challenges

Proper maintenance is crucial for the longevity and performance of any generator, including the Generac XT8500EFI. However, some users may encounter challenges when it comes to maintenance tasks such as oil changes, spark plug replacements, and filter cleaning.

It is important to follow the manufacturer’s guidelines and schedule regular maintenance to prevent potential problems. Additionally, seeking professional assistance or referring to the user manual can help overcome maintenance challenges.

Issue 5: Customer Support

While Generac is known for its quality products, a few users have reported dissatisfaction with the customer support provided. Timely and effective customer support is essential for resolving issues and addressing concerns promptly.

If you encounter any problems with your Generac XT8500EFI generator, reach out to the manufacturer’s customer support helpline or consult their online resources for guidance.

Troubleshooting Tips for Generac Generator XT8500EFI Problems

Here are some troubleshooting tips to address common problems faced by Generac XT8500EFI users:

  1. Starting Problems: Ensure the battery is adequately charged, check the fuel line for blockages, and inspect the starter motor for any malfunctions.
  2. Fuel Efficiency Concerns: Clean or replace the air filter regularly, use the correct fuel-to-oil ratio, and avoid overloading the generator.
  3. Noise Levels: Place the generator on a noise-dampening mat, use a soundproof enclosure if needed, and maintain a proper distance from living spaces.
  4. Maintenance Challenges: Follow the manufacturer’s guidelines for oil changes, spark plug replacements, and filter cleaning. Seek professional assistance or refer to the user manual if necessary.
  5. Customer Support: Contact Generac’s customer support helpline or utilize their online resources for prompt assistance.

People also ask

What are the most common problems with Generac generators?

The most common problems with Generac generators can vary depending on the model and age of the generator. However, some of the most common issues that users have reported include starting difficulties, fuel-related problems, oil leaks, overheating, and electrical issues.

These problems can often be prevented or addressed with regular maintenance, such as changing the oil and oil filter, cleaning or replacing air filters, and checking fuel filters and connections.

It’s also important to follow the manufacturer’s instructions for maintenance and care to help prevent problems from occurring in the first place.

How long will a portable Generac generator last?

The lifespan of a portable Generac generator can vary depending on several factors, such as the model, usage, and maintenance.

With proper maintenance and care, a portable Generac generator can last for many years. However, if the generator is not properly maintained or is subjected to heavy use, its lifespan may be shorter.

It’s important to follow the manufacturer’s recommendations for maintenance and to use the generator only as directed to help ensure its longevity.

Are Generac portable generators reliable?

Generac portable generators are generally considered to be reliable. They are designed and manufactured to provide backup power during emergencies or in situations where access to electricity is limited.

Generac is a reputable brand that has been in the generator business for decades, and its generators are known for their durability and quality.

However, like any piece of equipment, the reliability of a Generac portable generator can be affected by factors such as usage, maintenance, and environmental conditions.

Regular maintenance and care can help ensure that a Generac portable generator remains reliable and performs as expected.

How many hours does a Generac generator last?

Generac generators are designed to be durable and long-lasting. With proper maintenance, they can often last for 20,000 to 30,000 hours of operation or more.

However, the lifespan can vary based on factors like usage, maintenance, and environmental conditions. Regular servicing and following the manufacturer’s guidelines can help maximize the lifespan of a Generac generator.


In conclusion, The Generac XT8500EFI generator is a reliable and powerful machine that can provide backup power during emergencies or in situations where access to electricity is limited. However, like any piece of equipment, it may experience some problems over time, such as starting difficulties, fuel-related issues, and overheating.

These problems can often be prevented or addressed with regular maintenance and troubleshooting. It’s important to follow the manufacturer’s recommendations for maintenance and to seek professional help if necessary.

With proper care and maintenance, the Generac XT8500EFI generator can provide reliable power for many years.

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