Common Failures of Generator Set and the Solutions

With the increase of use time, improper use, lack of maintenance, climate temperature and other factors, generator sets may have unexpected failures. For reference, AGG lists some common failures of generator sets and their treatments to help users to deal with the failures, reduce unnecessary losses and expenses.


Common failures and solutions

There are several common failures that can occur with generator sets. Here are a few common failures and the corresponding solutions.

· Faulty starter motor

If the starter motor fails to start the generator, the cause may be due to a faulty solenoid or a worn starter motor. The solution is to replace the starter motor or solenoid.

· Battery failure

The generator set will not be started when the battery is dead or low. Charge or replace the battery to solve this issue.

· Low coolant level

If the coolant level in the genset is too low, overheating, and potential engine damage can result. The solution is to check the coolant level and replenish it if necessary.

Common Failures of Generator Set and the Solutions (1)

· Low fuel quality

Poor quality or contaminated fuel can cause the generator set to run poorly or not at all. The solution is to drain the tank and replenish it with clean and high-quality fuel.

· Oil leakage

An oil leak can occur when there is a problem with the oil seals or gaskets of the generator set. The source of the leak should be identified and repaired as soon as possible, and any damaged seals or gaskets should be replaced.

· Overheating

Overheating can be caused by several factors, such as a faulty thermostat or a clogged radiator. This is dealt with by checking and cleaning the radiator, replacing the thermostat if necessary, and ensuring that there is good ventilation around the generator.

· Voltage fluctuations

Voltage output fluctuations can be caused by a faulty voltage regulator or loose connections. The solution is to check and tighten all connections and replace the voltage regulator if necessary.


It is important to note that these are just a few examples of common failures and their basic solutions, which may vary from model to model. In addition, regular maintenance, proper operation, and timely resolution of potential problems can help reduce the occurrence of common generator set failures. In the absence of specialized knowledge and technicians, it is recommended to consult the manufacturer's manual or contact a professional technician for diagnosis and repair in the event of a generator set malfunction.

Common Failures of Generator Set and the Solutions (2)

Reliable AGG generator sets and comprehensive power support


AGG is a multinational company specializing in the design, manufacture and distribution of power generation systems and advanced energy solutions, with a network of more than 300 dealers around the world, enabling timely and responsive power support.


AGG generator sets are known for their high quality, efficiency, and durability. They are designed to provide an uninterrupted power supply for different applications, ensuring that critical operations can continue even in the event of a power outage.

In addition to reliable product quality, AGG and its global dealers always ensure the integrity of each project from design to after-sales service, providing customers with the necessary training and assistance to ensure the proper functioning of the generator sets and the customers' peace of mind.


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Post time: Aug-15-2023