Why Are Both the High and Low Pressure Pipes of the Car Air Conditioning Hot?

[LaneLynn]

Car air conditioning low pressure pipe being hot is generally caused by a dirty or clogged expansion valve. Here is the relevant information: 1. Cause of the fault: The low pressure pipe of the car air conditioning is connected to the refrigerant radiator, which exchanges the heat generated by the air conditioning operation. If the expansion valve is blocked, the air conditioning will not work, and the heat generated by the air conditioning operation cannot be removed, leading to the low pressure pipe heating up. It is recommended to go to a repair shop for timely maintenance and resolution. 2. Air conditioning compressor: The air conditioning compressor is usually installed on the engine and driven by a belt (some are directly driven). After being cooled by the condenser heat dissipation pipe, it turns into a high-pressure, low-temperature liquid. Then, after being dehumidified and buffered by the liquid storage dryer, it flows to the expansion valve with relatively stable pressure and flow rate. After throttling and pressure reduction, it finally flows to the evaporator to achieve cooling.