How to Properly Maintain Your Home Generator: Tips from the Experts

Oct 06, 2025By Ashur Tamou

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Understanding the Importance of Generator Maintenance

Home generators are a crucial backup for maintaining power during outages. However, like any other equipment, they require proper maintenance to function effectively. Regular upkeep not only ensures operational efficiency but also extends the life of your generator. To keep your generator in top shape, follow these expert tips.

home generator maintenance

Conduct Regular Inspections

One of the most important steps in maintaining your generator is conducting regular inspections. Check for any signs of wear and tear, such as frayed wires or rust. It's crucial to address these issues promptly to prevent further damage. Make a habit of inspecting your generator at least once a month, paying close attention to all components.

Change the Oil Regularly

Just like a car engine, your generator's engine needs regular oil changes to ensure it runs smoothly. Typically, it's recommended to change the oil after every 100 hours of use or at least once a year. Always refer to the manufacturer's manual for specific oil recommendations and guidelines.

generator oil change

Check the Air Filter

The air filter is essential for preventing dirt and debris from entering the generator's engine. Over time, the filter can become clogged, reducing efficiency and potentially causing damage. Experts suggest checking and cleaning the air filter every three months and replacing it annually or as needed.

Test Your Generator Monthly

Running your generator for about 20-30 minutes each month helps keep it in good working order. This exercise ensures that the generator is ready to perform when you need it most. During these tests, monitor for any unusual noises or performance issues that may require attention.

generator testing

Keep Fuel Fresh

Stale fuel can severely impact your generator's performance. If your generator uses gasoline, consider adding a fuel stabilizer to keep it fresh if you don't use it frequently. For those with diesel generators, ensure the fuel is clean and free from contaminants by replacing it annually.

Store in a Safe Location

Your generator should be stored in a dry, well-ventilated area away from direct sunlight and moisture. Proper storage not only protects it from the elements but also reduces the risk of electrical hazards. Ensure that the location is easily accessible in case of an emergency.

generator storage

Perform an Annual Professional Checkup

While regular maintenance can be done by homeowners, it's wise to have a professional technician conduct an annual checkup. They can inspect components that may not be visible to the untrained eye and perform any necessary repairs or adjustments. This professional touch ensures your generator remains reliable for years to come.