How to disassemble the new Santana heater box?

How to disassemble the new Santana heater box? First, drain the coolant from the cooling system, then remove the dashboard of the new Santana, and then remove the skeleton and blower as a whole. After disassembly, the heater box will be removed. Common automobile heating systems can be divided into three types: coolant heating, gas heating and exhaust gas heating. Coolant heating is used in automobiles. It consists of coolant, water pump, water valve, blower, warm water tank, etc. The coolant is heated by the engine. After the hot water is pressurized by the water pump, it enters the warm water tank from the water inlet of the warm water pipe through the rotary water valve that controls the coolant flow. The coolant entering the warm water tank enters the engine for circulation from the outlet of the warm water pipe. The car warm water tank is used to provide warm air for the car, raise the temperature inside the car, and clear the frost and fog on the window glass. Its working principle is that when the engine is working, the coolant heated by the engine cylinder at high temperature enters the heat exchanger through the water inlet pipe under the action of the water pump of the engine cooling system, and the heat emitted by the coolant is sent to the carriage or windshield by the air blown by the blower, so that the temperature in the carriage is raised and defrosted. After driving for a period of time, there is a layer of foreign matter and dust on the surface of the heater water tank, which will affect the heat dissipation if it is not cleaned. After long-term operation, the blower motor should be maintained and replaced. The operation process must be judged and maintained by professionals, and the motor must not be disassembled without permission. This can easily lead to short circuit, non-rotation of the motor, and even burn out the safety. In severe cases, the wiring harness will be burnt out, causing a fire. Million car purchase subsidy