Lpe is the low-pressure alarm of the refrigerator system when the refrigerator of the refrigerated truck appears! The low system pressure is probably caused by the lack of fluorine in the cold machine system, so it is necessary to detect the leakage point and add fluorine.

The difference between independent and dependent refrigerators of refrigerated trucks: independent refrigeration units: independent and dependent refrigeration units are divided according to power sources. Independent refrigeration unit means that the refrigeration unit has an independent power source. Generally speaking, independent refrigeration units are all integrated structures, but there are also modified split structures (this structure is generally hoisted on the beam of the car), which have their own engines and generators to provide power and electric energy for the refrigeration system. Can work independently and is not limited by the working state of the automobile engine. Dependent refrigeration unit: it is a refrigeration unit that cannot work independently. This kind of unit itself has no power device, and it must rely on the automobile engine to drive the compressor to work.