What Causes a Car's Air Conditioning to Alternate Between Hot and Cold?

[DelLucy]

Car air conditioning alternates between hot and cold due to: refrigerant leakage, internal damage to the air conditioning pump, excessively dirty condenser fins in the air conditioning system, loose compressor wiring, poor contact of the pressure switch, electrical contact issues, excessive pressure in the air conditioning high-pressure pipe, or compressor clutch failure. Car air conditioning is designed to regulate and control the temperature, humidity, air cleanliness, and airflow within the vehicle cabin to an optimal state, providing a comfortable environment for passengers, reducing travel fatigue, and creating favorable working conditions for the driver. It serves as a crucial ventilation device for ensuring safe driving. Generally, car air conditioning includes cooling devices, heating devices, and ventilation systems. This integrated system makes full use of the limited space inside the vehicle, featuring a simple structure, and represents the internationally popular modern car air conditioning system.