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Diesel Generator Troubleshooting: Frequently Asked Questions and Maintenance Tips

Diesel Generator Troubleshooting: Frequently Asked Questions and Maintenance Tips

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Diesel generators are essential to provide backup power in a variety of applications. However, they sometimes face issues that can affect their performance. In this article, BISON discusses common diesel generator problems, troubleshooting steps, and the importance of regular preventive maintenance.

Frequently Asked Questions and Troubleshooting Steps

Dead battery

A dead battery is the most common problem with generators. It is recommended to replace the battery every three years to ensure optimal performance. BISON offers battery replacement services and expert advice on keeping your generator batteries healthy.

Fuel Level

The alarm will be triggered if the fuel level is too high or too low. It may be necessary to manually reset the high fuel alarm. Make sure to check the fuel level and keep it within the recommended range. BISON can guide you in proper fuel management and provide solutions to maintain optimal fuel levels.


Leaks in the generator should be corrected by a BISON qualified technician. However, false positives can sometimes occur due to wet stacking. Regular inspection and maintenance can help detect any potential leaks and ensure generator reliability.

Air in the fuel system

Air in the fuel system can prevent starting. Running the generator for five minutes a week will help clear the air and ensure proper operation.

Auto Control

Leaving the Auto Control in the “OFF” position prevents the generator from starting. Always check the control settings before attempting to start the generator. BISON’s technicians can help you understand control panel settings and keep your generator running smoothly.

Glow Plug and Preheat System Problems

If your generator won’t start, especially in cold weather, it could be due to a faulty glow plug or a faulty preheat system. BISON can check and fix these issues to help your generator start efficiently in cold conditions.

Clogged fuel filter

A clogged fuel filter can restrict fuel flow to the engine, causing the generator to stall or not start at all.

Contaminated Fuel

Over time, diesel fuel can become contaminated with water, dirt, or microbial growth. Make sure fuel is stored properly and checked regularly for contamination.

Worn or Damaged Components

Periodically inspect components such as injectors, pumps and belts for wear or damage and replace them as needed to maintain optimum generator performance.

Electrical system problems

Check the electrical system for any visible damage and make sure all connections are secure. Miswiring, damaged components, or loose connections can cause the generator to malfunction or not start at all. BISON’s skilled technicians can diagnose and repair electrical system problems to keep your generator running smoothly.

Software or control panel problems

See the manufacturer’s guide for troubleshooting software or control panel problems. If necessary, seek professional assistance from BISON to resolve these issues and keep your generator running properly.

generators troubleshooting

Preventive Maintenance And Professional Assistance

Regular preventive maintenance is key to keeping your generator in top condition. BISON can handle all needs related to procurement, installation and maintenance. By addressing common problems and following a recommended maintenance schedule, you can keep your generator running smoothly and efficiently when you need it most.

In conclusion, knowing how to troubleshoot and maintain a diesel generator is critical to its reliability and longevity. With the help of BISON’s expert service and proper maintenance, your diesel generator will always be ready to provide reliable power when you need it.

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