Planning Tool
Generate a personalized maintenance checklist tailored to your generator brand, fuel type, climate zone, and usage. Includes fuel-specific tasks, climate reminders, operating-hour intervals, and manufacturer guidance.
Most manufacturers recommend a professional service inspection at least once per year, with owner-performed checks monthly and quarterly. High-use generators — those running more than 100–150 hours per year — may require more frequent oil changes and inspections based on operating hours.
For most residential standby generators used infrequently (under 50 hours/year), annual oil changes are standard. For generators that run frequently, oil changes are recommended every 100–200 operating hours. Always follow your owner's manual — intervals vary by engine model.
Most standby generators perform automatic exercise cycles configured through the generator controller. Exercise frequency, duration, speed, and whether the generator runs under load depend on the manufacturer, controller, and model. Regular exercise helps charge the battery, circulate oil, and keep the transfer switch operational. Always follow your owner's manual for the recommended exercise settings.
Spark plugs should be inspected annually and replaced as needed. For high-use generators, replacement every 200 operating hours is a common guideline. Fouled or worn spark plugs can cause hard starting, misfires, and increased fuel consumption.
Standby generator batteries typically last 3–5 years. Most manufacturers recommend replacing the battery every 3 years regardless of apparent condition, and performing a load test annually. Cold climates reduce battery capacity significantly, making regular testing especially important.
Yes. Natural gas generators require annual gas pressure checks, regulator inspections, and flexible connector inspections. Propane generators need periodic leak testing of fittings, regulator condition checks, and tank inspections. Diesel generators require more frequent fuel system attention — including draining water separators, replacing fuel filters, checking for microbial contamination, and replacing stored fuel that has degraded.
