Why Generator Maintenance Is Critical
Your RV’s generator powers air conditioning, appliances and electronics when shore power isn’t available. Starting failures, fluctuating output and unusual noises are common issues. Technicians recommend checking the battery and fuel supply first when a generator won’t start, then inspecting connections for corrosion and testing the ignition switch. Fluctuating power may require balancing the load and checking automatic voltage regulation. Clogged air or fuel filters can also cause unstable output.
Southern RV services Cummins Onan, Generac, PowerTech, and NPS (Next Gen Power Systems) brand generators.
Signs Your Generator Needs Service
- Generator won’t start – verify battery voltage (should be above 12 V); check fuel level and connections. Verify the carburetor is clean and fuel can be delivered.
- Power fluctuations – erratic voltage may indicate load imbalances or faulty voltage regulation.
- Unusual noises – rattling or grinding can signify loose components or bearing issues.
- Shuts down unexpectedly – overheating from clogged filters or low oil can cause shutdown.
- Poor fuel efficiency – dirty air filters or carburetor settings may be the culprit.
Generator Services
- Diagnostics & troubleshooting – battery tests, fuel system checks and voltage regulation.
- Preventive maintenance – oil and filter changes after the first 50 hours and every 150 hours thereafter; air filter replacement every 500 hours.
- Fuel system service – cleaning carburetors and replacing clogged fuel filters.
- Load testing & balancing – ensuring proper voltage under various loads.
- Full replacement – when repairs exceed the value of an old or undersized unit.
Tips to Extend Generator Life
Run the generator at least once a month for an hour under a 50% load to keep fuel from gumming up. Keep up with oil, filter and coolant changes and schedule annual professional service.
Schedule Generator Service
Schedule generator service or diagnostics online, or call 1-800-633-9940 for immediate assistance.
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