Why does the air conditioning pressure switch of the new Santana keep burning out?

[LaBradley]

Car air conditioning pressure switches are essential control components that ensure the proper operation of the car's air conditioning refrigeration system. Pressure control can be categorized into high, medium, and low levels, and further divided into 2, 3, or 4-wire configurations. High and low-pressure switches control the start and stop of the compressor when abnormal pressure occurs in the system. The control range of the high-pressure switch is generally between 15-26 bar, while the low-pressure switch operates within 0-4 bar. The medium-pressure switch, typically set at 17 bar, controls the high and low speeds of the condenser fan. Below is additional information on air conditioning pressure: 1. Pressure temperature sensor: This refers to a sensor that can detect temperature and convert it into an available output signal. Temperature sensors are the core components of temperature measurement instruments and come in a wide variety. Based on measurement methods, they can be divided into contact and non-contact types, and according to sensor materials and electronic component characteristics, they are classified into thermal resistors and thermocouples. 2. Loss of protection: If the high-pressure switch loses its protective function, the system may experience issues such as pipe bursts, belt slippage, and engine stalling. If the low-pressure switch fails, in cases of system leakage, foreign objects or water may enter the system, causing irreversible damage to the refrigeration system.