What is the reason why the automobile cooling fan does not turn?

The reasons why the automobile cooling fan does not turn are: the air conditioning filter element is blocked, the refrigerant is missing or the warm air water tank is blocked; Relay failure and temperature control switch problems; Line failure. Cooling fan is an important part of automobile engine cooling system. The cooling objects are water tank and intercooler. There is hot coolant in the water tank. The cooling liquid contacts the air through the radiator to dissipate heat, and the fan accelerates the heat dissipation. If the fan does not turn, the heat of the cooling system cannot be dissipated, and the heat of the engine will continue to rise. After a while, the circulating liquid of the cooling system will boil. Once the engine is seriously overheated, it will melt the piston, leading to cylinder pulling and other failures, which will seriously lead to engine tile, shaft locking, cylinder collision and even scrapping. Million car purchase subsidy