A home generator is a machine, and like any machine, it needs regular maintenance to perform when you need it most. The worst time to discover a problem is during a power outage. Here’s how to maintain your home generator for reliable backup power.
Weekly Self‑Test: Most standby generators run an automatic self‑test once a week, usually for 5–20 minutes. This exercises the engine and alerts you to potential issues. Make sure the self‑test is enabled and pay attention to any warning lights or error codes. For how the system is installed and connected, see the installation process.
Monthly Checks:
- Visual inspection: Look for debris, rodent nests, or corrosion around the unit. Keep the area clear of leaves, grass, and snow.
- Check the oil: Low oil can damage the engine. Check the oil level monthly and top up if needed.
- Check the air filter: A clogged filter reduces performance and increases fuel consumption.
Annual Professional Maintenance: Once a year, have a qualified technician perform a thorough service. This typically includes an oil and filter change, spark plug replacement, coolant check, battery test, and a full system test under load. See our guide to choosing a licensed installer for finding a service provider.
Fuel System Maintenance: Keep your fuel source ready. For natural gas, this is handled by the utility. For propane, monitor tank levels and schedule refills before levels get too low. Diesel generators require fuel conditioning. See generator fuel options for specifics.
When to Replace: Generators have a lifespan. For typical longevity, see our generator lifespan guide. And if your generator won’t start or runs poorly, see troubleshooting common problems.
Leave a Reply