Generator Repair and Maintenance

A generator is only as reliable as its maintenance. At New Mexico Solar Pros, we provide expert generator repair and routine maintenance services to ensure your backup power system remains in peak condition. Our certified technicians diagnose issues, replace worn components, and perform routine maintenance to keep your generator ready when you need it most. Don’t wait for an emergency—schedule your maintenance today!

Maintaining a generator requires a mix of routine visual checks and scheduled mechanical service to ensure it starts when you actually need it.
Core Maintenance Tasks
  • Oil and Filters: Change the engine oil and oil filter every 100 hours of operation or at least once a year. For a brand-new generator, perform the first "break-in" oil change after the first 20–30 hours.
  • Fuel System: We inspect fuel lines for cracks or leaks. Vapor gas lines, like propane and natural gas, are tested with a specialized meter that measures PPM. When we provided maintenance on generators using gasoline or diesel, we add fuel stabilizer to prevent gumming, or drained the tank if it would sit for more than a few months.
  • Spark Plugs: Replace spark plugs every 200 hours or annually to ensure reliable ignition.
  • Battery Care: Clean terminals to remove corrosion and check the charge level every 6 months.
  • Valve Adjustments: Not all units need valve adjustments, but our certified technicians ensure that if your unit requires this critical maintenance its documented during routine service.
  • Air Filter: Clean or replace the air filter every 200 hours or annually. Inspect it monthly if you live in a dusty environment.
Maintenance Schedule
Frequency Key Actions
Weekly Perform a visual inspection for leaks or loose wires; run the generator for 15–30 minutes under load to exercise the engine.
Monthly Check oil and coolant levels; inspect the battery for corrosion; clear debris from around the unit.
Annually Replace oil, oil filter, air filter, and spark plugs; perform a full load test; inspect the transfer switch.
Expert Tips for Reliability
  • Exercise Under Load: Don't just start the engine; plug in an appliance (like a space heater) during your test runs to ensure the unit is actually producing power.
  • Clearance: Maintain at least 5 feet of clearance for any vegetation around the generator for proper ventilation and safety.
  • Log Book: Record run hours and service dates to stay ahead of manufacturer warranty requirements.
For brand-specific instructions, you can typically find digital manuals on official sites such as the Generac Support Portal or the Cummins Maintenance Guide.
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