Riequip's Guide: Generator Maintenance Checklist

A reliable generator is the backbone of any backup power plan, ensuring businesses, homes, and work sites stay operational when the grid goes down. But like any piece of equipment, a generator requires regular upkeep to perform at its best. Neglecting maintenance can lead to costly repairs, unexpected breakdowns, or even permanent damage. This guide provides a clear, practical checklist to help you stay on top of essential servicing tasks, ensuring your generator remains dependable when you need it most.

Routine Generator Maintenance Tasks

Sticking to a structured maintenance routine reduces the risk of malfunctions and ensures consistent performance. Here’s what to include in your schedule:

1. Conduct Visual Inspections

Before starting your generator, do a quick but thorough check:

• Look for oil, coolant, or fuel leaks
• Inspect hoses and belts for wear or cracks
• Ensure electrical connections are secure and corrosion-free
• Clear debris from air vents and exhaust systems
• Catching minor issues early prevents expensive repairs later

2. Maintain Fuel Quality and Levels

Fuel degrades over time, especially in backup generators that aren’t used frequently. Contaminated or stale fuel can clog injectors and damage the engine. To avoid this:

• Keep fuel tanks adequately filled to prevent condensation buildup
• Use stabilisers if storing fuel long-term
• Drain and replace fuel periodically, especially if the generator sits unused for months

3. Change Oil and Filters Regularly

Oil lubricates engine components, reducing friction and preventing overheating. Over time, dirty oil loses effectiveness. To keep your generator in peak condition:

• Change the oil as per the manufacturer’s guidelines (typically every 50–200 hours of use)
• Replace fuel, oil, and air filters to maintain efficiency and airflow

4. Test the Battery and Electrical System

A generator is only as reliable as its battery. Without proper maintenance, batteries can corrode or lose charge, rendering your generator useless in an emergency. Regularly check:

•  Battery voltage and charge levels
•  Electrical wiring and connection integrity
•  Control panel readings and error codes
•  The automatic transfer switch to ensure a seamless power transition

5. Perform Load Testing

Running your generator under load confirms its ability to handle real-world power demands. This prevents carbon buildup and ensures that components function correctly. Best practices include:

• Conducting a monthly test at 50% load
• Gradually increasing load levels to evaluate performance under strain
• Addressing fluctuations or irregularities promptly

Safety Precautions for Generator Use

Routine maintenance is critical, but safety should always be a priority. Keep these precautions in mind:

• Ensure adequate ventilation to prevent carbon monoxide poisoning
• Keep the area clear of flammable materials
• Properly ground the generator to prevent electrical hazards
• Inspect exhaust systems regularly for leaks

Common Generator Issues and Prevention Tips

Even well-maintained generators can develop issues. Here’s how to prevent and troubleshoot common problems:

• Won’t Start? This is often due to a drained battery or old fuel. Regular battery maintenance and fuel cycling help prevent startup failures.

• Overheating? Low coolant, dirty filters, or blocked air vents may be the cause. Keep cooling systems clean and top up fluids as required.

• Fluctuating Power Output? This can indicate an alternator issue or improper load distribution. Routine testing and load adjustments can stabilise performance.

Why Regular Servicing Matters

Skipping generator maintenance may seem convenient, but it leads to long-term issues. A well-maintained generator provides:

• A longer operational lifespan

• More efficient fuel consumption

• Fewer breakdowns and emergency repairs

• Reliable performance when power outages occur

At Riequip, we know how crucial it is to keep your generator in peak condition. Whether you need expert advice, replacement parts, or a new generator that fits your needs, our team is ready to assist.

Need Help Selecting the Right Generator?

Not all generators are the same, and choosing the right one is as important as maintaining it. Use our Generator Calculator to find the best option for your power needs. Browse our full range of generators here or reach out for expert recommendations tailored to your usage.

Keeping your generator in top shape doesn’t have to be complicated. A proactive approach to maintenance ensures it’s always ready when you need it most.