Burning Smell from Car Air Conditioner

[Michelle]

The reasons for a burning smell when the car air conditioner is turned on are as follows: Mold has developed on the surface of the heat exchanger fins. Below is a related introduction to car air conditioners: 1. Compressor: Driven by the engine, it continuously draws in the low-temperature and low-pressure refrigerant vapor generated by heat absorption and vaporization in the evaporator, compresses it to form high-temperature and high-pressure refrigerant vapor, and discharges it to the condenser, creating high-pressure conditions for the refrigerant to continuously condense and release heat in the condenser. At the same time, it overcomes the circulation resistance of the refrigerant in the refrigeration circuit. 2. Condenser: Releases the heat contained in the high-temperature and high-pressure refrigerant vapor discharged by the compressor to the outside air flowing through the condenser, and condenses the refrigerant vapor into refrigerant liquid with a certain temperature. Most condensers are located in front of the radiator at the front of the car and are cooled by the cooling fan and the oncoming airflow generated by the car's movement.