Storm season is when generators are most likely to fail — not because they are poorly built, but because they haven’t been checked in months. A short maintenance review before severe weather arrives can prevent many of the most common breakdowns homeowners experience during outages.
This checklist walks through the key generator maintenance steps to complete before storm season begins.
Why Pre-Storm Generator Maintenance Matters
Generators often sit unused for long periods. Fuel degradation, oil breakdown, corrosion, and loose connections can develop silently over time.
Completing maintenance before storms ensures problems are discovered under calm conditions rather than during an emergency.
Step 1: Inspect Oil Condition and Level
Check the oil level and appearance. Oil that appears dark, gritty, or smells strongly of fuel should be replaced.
If the generator is new or recently broken in, confirm oil service has been completed. Review generator oil change intervals for guidance.
Step 2: Check Fuel Quality and Supply
Old gasoline may cause starting issues or rough operation. Propane systems should be checked for secure connections and proper tank levels.
Fuel planning should match expected runtime needs. For safe operating durations, see how long a generator can run safely.
Step 3: Inspect Air Filter and Cooling Areas
Clogged air filters restrict airflow and reduce engine efficiency. Inspect and clean or replace filters as needed.
Remove debris around cooling vents to prevent overheating.
Step 4: Test Run the Generator Under Load
Run the generator briefly with a light electrical load to confirm proper operation. Listen for unusual noises or vibration.
New generators should already have completed their break-in period. See generator break-in period explained if unsure.
Step 5: Inspect Cords, Connections, and Safety Devices
Check extension cords, outlets, and any transfer equipment for damage. Replace worn or frayed cords.
Verify safety features such as circuit breakers operate correctly.
Step 6: Confirm Storage and Placement Readiness
Ensure the generator’s intended outdoor placement meets clearance and ventilation requirements. Storage locations should allow quick deployment.
Step 7: Review Documentation and Emergency Plan
Keep the owner’s manual accessible. Review startup and shutdown procedures so they are familiar before an outage occurs.
Conclusion
A generator maintenance checklist completed before storm season greatly reduces the risk of failure during outages. A few proactive steps can make the difference between reliable backup power and unexpected downtime.
