Oil fluidity becomes poor, heat exchange thermal performance decreases.
The heat of the head of the air compressor can not be completely taken away, resulting in high temperature of the air compressor.
For water-cooled models, you can check the temperature difference between the inlet and outlet water pipes. Under normal circumstances, it should be 5 and 8 deG C, lower than 5 DEG C there may be scaling or blockage, which will affect the heat transfer efficiency of the cooler and cause poor heat dissipation. At this time, the heat exchanger can be removed and cleaned.