How to Maintain Your Generac Generator

A Generac generator, like any other generator, requires regular inspections and service. Too often, these generators are installed by those who don’t specialize in servicing them. If they aren’t set to test weekly or annual inspections and maintenance go neglected, the generator’s lifespan will be shortened. Whether you are a new homeowner or have owned a home for many years, generator maintenance can be overwhelming. Here’s what you should know.

Essential Maintenance

Oil filters, air filters, spark plugs, and your generator’s oil needs standard maintenance. Maintenance kits for your specific Generac generator are available to buy so you don’t have to determine what kind of filters, spark plugs, and oil you might need. Of course, you can always opt to purchase parts individually. Maintaining your generator requires tools such as a screwdriver, ratchet, socket wrench, Allen wrench, pliers, spark plug gap gauge, funnel, and drip pan. Always look at the owner’s manual before performing maintenance and wear proper personal protection equipment.

Oil and Filters

When power outages call for running the generator for extended periods of time, oil levels should be checked daily. Follow the instructions in the owner’s manual to turn off the generator when checking the oil level. If it’s low on oil, top it off with the recommended type of oil, and be sure to change the oil filter. A filter catches the metal fragments and other impurities that can harm your generator. Reusing oil filters will shorten the unit’s lifespan and be costly in the long run. Some generators use fuel filters. Make sure to inspect the fuel filters to see if they appear brittle or dirty but they only need to be replaced as needed. All combustion engines use air filters though so don’t overlook inspecting them. A dirty air filter or one filled with debris may cause a generator to fail if it can’t take in air.

Spark Plugs & Beyond

Spark plugs play a critical role in providing the adequate spark needed to ignite the fuel source in combustion engines. At a minimum, inspect your generator’s spark plugs annually. A great time to check them is during an oil change. Inspect the spark plugs for carbon build-up, appropriate gapping, fractured tips, or other wear.

Other parts on your Generac unit that should be inspected, maintained, or replaced include the fuel regulator, battery, charger, coolant, radiator, alternator, and transfer switches. We don’t recommend making regular inspections or changes on your own. A qualified electrician understands appropriate safety techniques. They can also test the wattage output so the power the generator is generating is powering your home safely. Is it time for your generator to be replaced? Contact your friends at New England Electrical!


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