We all rely on our generators when the power goes out, but what happens if it fails when you need it most? Whether it’s during a storm, a black-out, or an emergency, a generator that doesn’t work is more than just an inconvenience—it can cause serious disruptions, especially for critical businesses like hospitals or commercial buildings. That’s where preventative maintenance (PM) comes in. Regular service and maintenance keep your generator in top shape, ready to kick in when you need it the most.

Why Preventative Maintenance is a Game-Changer

Imagine this: your generator’s been sitting idle for months, waiting for an emergency. Then, when the power goes out, it fails to start. A disaster, right? Preventative maintenance is your safeguard against this kind of situation. By following a maintenance schedule, you can ensure your generator stays in peak condition, avoiding unexpected failures.

Here’s the deal: A well-maintained standby generator can last anywhere from 10,000 to 30,000 hours (roughly 20 to 30 years). But that’s only if you give it the attention it needs. If it only runs 26 hours a year (for those weekly test cycles), it won’t be running enough to keep itself in top shape. That’s why routine check-ups are crucial.

How Often Should You Maintain Your Generator?

Generators don’t require constant attention, but the more run time they get, the more frequent the maintenance should be. For example, if your generator runs multiple hours a year during frequent power outages, it’s going to need more frequent checks than one that only kicks on weekly for a test. Environmental factors also play a huge role—things like temperature extremes, dust, or humidity can increase wear and tear. The key? Tailoring your maintenance schedule to your generator’s specific needs.

Visual Inspections: A Monthly Must

At the very least, perform a visual inspection every month. Take a look around the generator’s area, and check for any debris, damage, or signs of pests (especially if it’s in an enclosed space). It’s also a good idea to give it a once-over after any extended run time, like after a storm.

Essential Homeowner Tips for Ongoing Maintenance

Here are a few tips to help you keep your generator in good shape between professional checks:

  • Keep it Clean: Make sure your generator and its surroundings are clear of dirt, dust, or obstructions.
  • Rodent Prevention: If it’s in an enclosed unit, check for any rodent activity (these little critters love finding warmth in the cold months).
  • Oil Levels: Always check the oil level when the unit isn’t running. If the generator’s been on, wait 10 minutes after it shuts down to check the oil. This allows all the oil to settle properly.
  • Fuel Levels: Make sure the fuel tank is adequately filled, especially if you’re expecting a storm or bad weather.

Weekly Maintenance Checklist

Your generator should be exercising regularly to keep it ready for action. Here’s a simple checklist for weekly checks:

  • Exercise Mode: Make sure the generator is running its automatic exercise cycle (typically no-load).
  • Alarms & Warnings: Check that there are no alerts or warnings on the system.
  • Fuel Levels: Confirm adequate fuel is in the tank.
  • Auto Mode: Ensure the generator is set to “Auto” mode for automatic startup when the power goes out.
  • Circuit Breaker: Check that the breaker is closed and correctly set.
  • Fluid Leaks: Make sure there are no signs of leaks (fluids or fuel).

Monthly Maintenance

  • Coolant & Oil: Check engine coolant and oil levels to ensure everything is in balance.
  • Battery Charger: Inspect the battery charger to make sure it’s functioning properly.

Annual Maintenance: Time for a Full Check

Once a year, schedule maintenance with a certified technician. Here’s what should be done during your annual maintenance:

  • Oil & Filter Change: Start with a fresh oil change and replace the filters.
  • Fuel & Filters: Replace the fuel and fuel filters to ensure optimal performance.
  • Crankcase Breather: Clean the crankcase breather.
  • Spark Plugs: Swap out spark plugs if necessary.
  • Coolant System: Check coolant concentration and flush the system if needed.
  • Load Bank Testing: This tests the generator under a full load to ensure it’s up to the task.
  • Fuel Testing & Reconditioning (for diesel): If your unit runs on diesel, make sure to test and treat the fuel.
  • Water Removal (for diesel): Remove any water from the diesel tank—this can cause major issues if left unchecked.
  • Electrical Connections: Double-check voltages and tighten electrical connections if needed.
  • Exercise Cycle: Set the exercise cycle for the requested time/day.
  • Overall Inspection: Check for any loose connections, debris, or leaks.
  • Battery Check: Inspect the battery for any corrosion, and load test and voltage test it to ensure it’s ready to perform.

Get Ahead of Power Outages with Preventative Maintenance

When it comes to your generator, it’s all about preventing problems before they start. Regular checks and servicing will ensure your generator keeps running when you need it most.

Ready to schedule your generator’s preventative maintenance? Contact Automated Home Generators today to make sure your system is in top shape for the next outage.

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