What happens if too much refrigerant is added to a car's air conditioning system?

[StEthan]

Adding too much refrigerant to a car's air conditioning system will increase the pressure in the system. When the air conditioning control system detects excessive pressure, it will frequently cut off the compressor's operation, resulting in poor cooling performance. Additionally, the consistently high pressure in the air conditioning pipes can lead to damage to the system's components. Below is a detailed introduction about adding refrigerant to the air conditioning system: Function of refrigerant: The role of adding refrigerant to the air conditioning system is to provide cooling. Only by serving as a refrigerant in the air conditioning system can it effectively control the indoor temperature. Cooling principle: The air conditioning compressor primarily draws gaseous Freon from the evaporator into the main unit. After compression, it converts into a high-temperature, high-pressure gas, which is then sent to the condenser through the expansion valve. After dissipating heat, it becomes a low-temperature, high-pressure liquid. Although the air conditioner itself blows out hot air, the Freon passes through the capillary tube and flows into the evaporator for throttling. The space expands, and the pressure decreases, converting it into cold air, which is why the air conditioner blows out cool air. Frequency of adding refrigerant: During the operation and use of the air conditioning system, if the Freon becomes insufficient or leaks, even if other components of the air conditioner are functioning normally, the system will not be able to provide cooling or heating. However, as long as the air conditioning system is well-sealed, no matter how long it has been used, there is no need to add Freon, and the cooling and heating performance can remain excellent. If it is necessary to add Freon to the air conditioning system, it should only be done when there is a shortage or leakage of Freon.