Why is the central air conditioning in the car not blowing air?

1 Answers
LeIsabella
07/29/25 8:30pm
If the central air conditioning in the car is not blowing air, it may be due to overheating damage of the internal coil, capacitor damage, or failure caused by a malfunctioning blower fan. Below is relevant information about car air conditioning: 1. Cooling Principle: When the car air conditioning is cooling, the compressor clutch engages, causing the engine to drive the compressor. The compressor continuously compresses the refrigerant and delivers it to the evaporator. Inside the evaporator, the refrigerant expands and absorbs heat, cooling the evaporator. The cooled evaporator then cools the air blown by the blower fan. 2. Heating Principle: When the car air conditioning is heating, the high-temperature coolant from the engine passes through the heater core. At the same time, the air blown by the blower fan also passes through the heater core, allowing the air vents to blow warm air.
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