Generators can last anywhere from 3,000 to 30,000 hours depending on the model you have for your home or business. However, there are times when a generator won’t start. We explain possible reasons why and how to troubleshoot the issues.

The Fuel Tank Is Empty

If a generator won’t start, the first place to check is the fuel tank. If the gas levels are low, add more fuel. Also, avoid using gas that’s more than two months old. Additionally, inspect the fuel valve, which controls the flow of gas from the tank to the carburetor. Check to see if the:

• Fuel valve and vacuum relief valve are closed instead of open
• Fuel line is clogged
• Filter is clogged

Check the Oil Levels

To improve your generator’s performance and extend its service life, keep your engine filled with clean oil. Make sure your generator sits on a level surface. Use the kind of oil the manufacturer recommends.

Check the Start and Choke Valve Switches

Make sure the generating set switch is in the on position. If it’s on and not starting, use a multimeter to test for a complete electrical path. If you’re not getting a complete path, replace the switch. Also, verify that the choke valve switch is closed when you start your generator. It’s then switched to open when the generator engine warms up.

Check the Carburetor, Spark Plug and Ignition Coil

Old fuel can cause buildup on the carburetor. If there’s a clog, use a carburetor cleaner to unclog it. An ignition spark tester is used to evaluate the generator’s spark plug and ignition coil. Use a brush to clean the spark plug if there’s a light carbon buildup. Otherwise, it may need to be replaced if it’s severely damaged or cracked.

Generator Won’t Turn Over

If the generator does not turn over, there are several things you can check. Start with the battery. If the battery isn’t charged, you can use the pull starter instead. Other components to check include the:

• Recoil starter
• Flywheel
• Fuel filter

Check the Air Filter

If the air filter is dusty or dirty, the generator may not start. Clean the filter by locating the filter cover. It’s by the recoil starter. Loosen the clamps that hold the cover in place, and remove the filter. You can wash it in warm water and detergent. Cover the filter with fresh engine oil, and remove any excess liquid before putting the filter back in place. Finally, store your generator properly in a cool, dry place with a cover on it when it’s not being used to ensure it works as expected.

If you have any other generator concerns, contact Burnett Electric in Reno, NV to benefit from our full range of generator services.