Why does the car air conditioner blow cold air at low throttle but not at high throttle?

1 Answers
ODelilah
07/29/25 1:49pm
Possible causes include insufficient refrigerant (tetrafluoroethane) or a clogged expansion valve. Below is relevant information about automotive air conditioning systems: 1. Introduction to Automotive Air Conditioning: The system consists of a compressor, condenser, throttle element, evaporator, fan, and necessary control components, designed to regulate cabin temperature and humidity for driver comfort. 2. Working Principle: When the compressor operates, it draws in low-temperature, low-pressure gaseous refrigerant from the evaporator. After compression, the refrigerant's temperature and pressure increase before being sent to the condenser. Inside the condenser, the high-temperature, high-pressure gaseous refrigerant transfers heat to outside air passing through, causing it to liquefy.
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