Home Emergency Generator Maintenance Checklist
Generator Information
| Item | Details |
|---|---|
| Generator Brand/Model | ________________________ |
| Serial Number | ________________________ |
| Fuel Type | Gasoline / Propane / Natural Gas / Diesel |
| Transfer Switch Type | Manual / Automatic |
| Installation Date | ________________________ |
| Service Company | ________________________ |
| Emergency Contact | ________________________ |
Weekly Generator Inspection Checklist
Visual Inspection
- Check generator for visible damage
- Inspect for fuel leaks
- Check oil leaks
- Inspect coolant leaks (if applicable)
- Ensure vents and air intakes are clear
- Verify exhaust system is secure
- Remove debris, leaves, snow, or nests
- Check surrounding area for proper clearance
Battery Inspection
- Inspect battery terminals for corrosion
- Verify battery charger operation
- Check battery connections are tight
- Inspect battery case for swelling or cracks
Fuel System
- Verify adequate fuel supply
- Check propane tank level
- Inspect fuel lines for cracks or wear
- Confirm fuel shutoff valves are open
Control Panel
- Verify no warning lights or alarms
- Check generator status display
- Ensure AUTO mode is enabled
- Confirm exercise timer is functioning
Monthly Generator Maintenance Checklist
Operational Test
- Start generator manually
- Allow generator to run under load for 15–30 minutes
- Verify smooth startup
- Listen for unusual noises
- Check for excessive vibration
- Verify proper voltage output
- Verify frequency output
- Check transfer switch operation
- Confirm essential circuits receive power
Engine Inspection
- Check engine oil level
- Inspect oil condition
- Check coolant level
- Inspect belts and hoses
- Inspect air filter condition
- Check spark plugs (if accessible)
Safety Systems
- Test emergency shutdown
- Verify carbon monoxide detectors work
- Confirm fire extinguisher nearby
- Inspect grounding connections
Quarterly Maintenance Checklist
Deep Inspection
- Clean generator exterior
- Inspect mounting hardware
- Tighten electrical connections
- Inspect wiring for wear or rodents
- Check exhaust for corrosion
- Inspect weather enclosure seals
- Lubricate hinges/latches if needed
Fuel Quality
Gasoline Units
- Add fuel stabilizer
- Replace stale fuel if older than 6 months
Diesel Units
- Inspect for algae contamination
- Drain water separator
Propane/Natural Gas Units
- Leak test fittings and connections
Annual Maintenance Checklist
Full Service
- Change engine oil
- Replace oil filter
- Replace air filter
- Replace spark plugs
- Replace fuel filter
- Flush coolant system (if required)
- Load bank test performed
- Inspect alternator
- Inspect transfer switch internally
- Replace starting battery if aging
- Verify firmware/software updates (smart generators)
Professional Inspection
- Schedule certified technician inspection
- Verify code compliance
- Confirm grounding and bonding
- Inspect gas pressure and regulator operation
After Every Power Outage
- Check oil level after extended runtime
- Inspect for leaks or overheating
- Refill fuel supply
- Clean debris around unit
- Log total runtime hours
- Verify AUTO mode restored
- Confirm battery charger active
- Inspect transfer switch returned to utility power
Generator Maintenance Log
| Date | Service Performed | Hours | Performed By | Notes |
|---|---|---|---|---|
Important Safety Reminders
- Never operate portable generators indoors.
- Maintain proper ventilation around standby generators.
- Install working carbon monoxide detectors near living spaces.
- Keep combustible materials away from generator exhaust.
- Exercise the generator regularly to prevent fuel and battery issues.
- Store fuel safely and according to local code requirements.
Recommended Spare Supplies
- Engine oil
- Oil filters
- Air filters
- Spark plugs
- Fuel stabilizer
- Battery charger/maintainer
- Extension cords (portable units)
- Transfer switch instructions
- Flashlight and PPE
- Extra fuel supply
Suggested Maintenance Schedule Summary
| Frequency | Tasks |
|---|---|
| Weekly | Visual inspection, battery check |
| Monthly | Run test under load |
| Quarterly | Deep inspection, fuel maintenance |
| Annually | Full service and professional inspection |
| After Outage | Refill, inspect, restore AUTO mod |