How to Determine the Quality of a Car Air Conditioning Compressor?

[OSamuel]

To determine the quality of a car air conditioning compressor: Turn on the air conditioning, and the low-pressure gauge on the car dashboard will quickly drop while the high-pressure gauge rapidly rises. If the needle's amplitude increases significantly when the throttle is pressed, it indicates the compressor is in good condition; otherwise, it is damaged. Reasons for air conditioning compressor failure include: 1. Damage to the electromagnetic clutch inside the compressor or internal wear; 2. Refrigerant leakage; 3. Damage to the compressor capacitor. The working principle of the air conditioning compressor: It draws refrigerant from the low-pressure area, compresses it, and sends it to the high-pressure area for cooling and condensation. The heat is dissipated into the air through the radiator, and the refrigerant changes from a gaseous to a liquid state, with an increase in pressure.