Mastering the Art of How to Purge Generac Generator: Essential Tips and Tricks

Knowing how to purge a Generac generator is essential for ensuring it runs smoothly and reliably when you need it most. A purged generator is a prepared generator, ready to kick in and provide power during an outage. This process removes old fuel and prevents the buildup of harmful deposits, ensuring optimal performance and preventing potential issues.

Understanding the Importance of Purging

Generac generators use gasoline or propane as fuel, and over time, these fuels can degrade and form deposits inside the fuel system. These deposits can clog fuel lines, injectors, and other components, leading to:

• Difficult starting: A clogged fuel system can make it hard for the generator to start, especially in cold weather.
• Reduced power output: Deposits can restrict fuel flow, leading to a decrease in power output, potentially affecting the appliances you need to run.
• Engine damage: Severe deposits can damage engine components, leading to costly repairs or even replacement.

When to Purge Your Generac Generator

Regular purging is crucial for maintaining your generator’s health. It’s recommended to purge your generator at least:

• Once a year: This is a good practice, especially if you live in a climate with extreme temperatures.
• After prolonged storage: If your generator has been sitting idle for a long time, purging it before use is essential.
• After using old fuel: If you’ve been using fuel that’s more than a year old, purging the system is necessary to remove potential contaminants.

The Steps to Purge Your Generac Generator

Purging your Generac generator is a relatively simple process that can be done by most homeowners. Here’s a step-by-step guide:
1. Safety First: Always disconnect the generator from power and fuel sources before starting any maintenance work. Ensure the generator is on a level surface and in a well-ventilated area.
2. Locate the Fuel Shut-Off Valve: Find the fuel shut-off valve on your generator. It’s typically located near the fuel tank.
3. Turn Off the Fuel: Close the fuel shut-off valve to stop the flow of fuel to the engine.
4. Run the Generator Dry: Start the generator and let it run until it stalls due to running out of fuel. This will empty the fuel lines and carburetor of any remaining fuel.
5. Add Fresh Fuel: Once the generator has stalled, open the fuel shut-off valve and add fresh, high-quality gasoline or propane to the tank.
6. Restart the Generator: Start the generator and let it run for a few minutes to ensure the fresh fuel is flowing through the system.
7. Check for Leaks: Inspect the fuel lines and connections for any leaks. If you find any leaks, immediately shut off the generator and address the issue before proceeding.

Additional Tips for Effective Purging

• Use fuel stabilizer: Adding fuel stabilizer to your gasoline will help prevent fuel degradation and extend its shelf life.
• Avoid using old fuel: Always use fresh fuel, ideally within a year of purchase.
• Store the generator properly: When not in use, store your generator in a dry, well-ventilated area.

Understanding the “Purge” Button (If Applicable)

Some Generac generators come equipped with a dedicated “purge” button. This button allows you to manually purge the fuel system by creating a vacuum that draws out any remaining fuel. If your generator has a purge button, follow these steps:
1. Turn off the generator.
2. Locate the purge button. It’s usually located near the fuel tank or carburetor.
3. Press and hold the purge button for 10-15 seconds. This will create a vacuum and draw out any remaining fuel.
4. Release the button and start the generator. Let it run for a few minutes to ensure the fresh fuel is flowing through the system.

Troubleshooting Common Issues

If you experience problems while purging your generator, here are some potential issues and solutions:

• Generator won’t start: Check the fuel shut-off valve to ensure it’s open. Make sure you have fresh fuel in the tank.
• Generator runs poorly: If the generator runs rough or stalls, there may be a fuel blockage. Consider cleaning the fuel filter or carburetor.
• Generator leaks fuel: Check the fuel lines and connections for leaks. Tighten any loose connections or replace damaged lines.

The Final Step: Keeping Your Generac Generator in Top Shape

Purging your generator regularly is a crucial step in maintaining its performance and longevity. However, it’s just one part of a comprehensive maintenance routine.

• Regular Inspections: Inspect your generator periodically for any signs of wear or damage.
• Oil Changes: Change the oil regularly according to the manufacturer’s recommendations.
• Air Filter Replacement: Replace the air filter regularly to ensure proper air flow to the engine.
• Battery Maintenance: Check the battery regularly and charge it as needed.

What People Want to Know

Q: How often should I purge my Generac generator?
A: It’s recommended to purge your generator at least once a year, especially if you live in a climate with extreme temperatures. You should also purge it after prolonged storage or after using old fuel.
Q: Can I purge my generator using a fuel additive?
A: While fuel additives can help to clean the fuel system, they are not a substitute for regular purging. Purging removes old fuel and deposits, while additives primarily aim to prevent future buildup.
Q: What should I do if my generator won‘t start after purging?
A: If your generator won’t start after purging, check the fuel shut-off valve to ensure it’s open. Make sure you have fresh fuel in the tank. If the problem persists, you may need to clean the fuel filter or carburetor.
Q: What are the signs of a clogged fuel system in a Generac generator?
A: A clogged fuel system can manifest as difficulty starting, reduced power output, rough running, and engine stalling.
Q: Can I use a fuel stabilizer in my propane generator?
A: Propane doesn’t require a fuel stabilizer as it doesn’t degrade as quickly as gasoline. However, it’s still a good practice to use a propane stabilizer to prevent moisture buildup in the tank.