There are many reasons for the sudden cold and hot phenomenon of automobile air conditioners.This problem may be caused by damaged compressor capacitance, dirty filter screen, insufficient refrigerant and moisture in the system.The solutions to these problems include replacing the compressor capacitor, cleaning the filter screen regularly, checking and replenishing the proper amount of refrigerant, and removing water from the system.In addition, when using air conditioners in summer, pay attention to the overall inspection of the air conditioning system, and regularly clean and maintain it to extend its service life. In order to maintain the normal working condition of the car air conditioner, the owner should also pay attention to the following matters: first, a comprehensive inspection should be carried out before the first use of the air conditioner;Secondly, pay special attention to cleaning the filter element and condenser regularly in spring and summer to prevent bacteria breeding;At the same time, turn off the cold air function and turn on the natural wind function within a few minutes before parking to maintain a relatively dry environment and avoid mold breeding;Finally, when choosing to open the large air volume, pay attention to timely cleaning the dust on the inner surface of the air duct, and it is recommended to use special air duct cleaning fluid for sterilization, deodorization and other treatment. In a word, the intermittent hot and cold problems of automobile air conditioners may be caused by various factors, but as long as we pay attention to regular maintenance and cleaning, we can ensure their normal operation.At the same time, the car owner also needs to take corresponding measures according to the actual situation to prevent or solve the air conditioning problem.
The car air conditioner is heated by engine coolant.
There is a warm air tank in the room, which can guide the hot water of the engine into the room, and then use the blower to blow the hot air into the room.
However, it should be noted that the refrigeration can be achieved only when the ignition is turned on and the air conditioner is turned on, but the heating must wait until the water temperature rises.
The first is exhaust heating, which uses the engine exhaust temperature. The second is cooling water heating, which uses the engine cooling water temperature. The third is electric heating, which is heated by electric heating wire.
