Why is the car AC indicator light on but the compressor not receiving power?

[StGabriel]

It is necessary to visit a 4S dealership to check the fault codes with professional equipment in order to determine the specific cause of the issue. Below is a partial introduction about automotive air conditioning compressors: 1. The automotive air conditioning compressor is the heart of the car's air conditioning refrigeration system, responsible for compressing and transporting refrigerant vapor. Compressors are divided into fixed displacement and variable displacement types. Based on different working principles, air conditioning compressors can be categorized into fixed displacement compressors and variable displacement compressors. 2. According to different working methods, compressors can generally be divided into reciprocating and rotary types. Common reciprocating compressors include crankshaft connecting rod type and axial piston type, while common rotary compressors include rotary vane type and scroll type.