Sometimes, after using a diesel generator set for a period of time, a high water temperature alarm may occur. Some customers may become confused and contact us for assistance. After conducting multiple practical studies, we concluded that this is caused by scale buildup in the generator set's radiator, which blocks its circulation system, leading to poor heat dissipation in the radiator and resulting in high water temperature. So, why does the radiator become blocked in the first place?

When diesel generator sets are put into use, our company provides specific user manuals. We hope customers will read the relevant precautions in advance, especially the requirements for adding coolant to the water tank of the diesel generator set. Under no circumstances should ordinary tap water or deep well water be added to the generator's water tank, as these waters have a high mineral content. After the generator set has been in use for a period of time, scale is likely to form. The higher the mineral content of the water, the more scale will form, and the more likely it is to clog the water tank.

Therefore, it is essential to add soft water, also known as purified water, to the radiator. In fact, the best additive should be antifreeze. This ensures that the diesel generator set will not experience high water temperatures, regardless of how long it is used. However, since the use of diesel generators also causes some wear and tear on the antifreeze, it is important to regularly replenish the antifreeze. Under no circumstances should the radiator be allowed to operate in a high-temperature state for extended periods. Additionally, regardless of whether water or antifreeze is added to the generator set's radiator, it must be cleaned regularly to prevent debris from accumulating inside, which could also cause the generator set to overheat and trigger an alarm.