Why Doesn't the Car Air Conditioner Cool?

[DelEmmett]

Car air conditioners fail to cool in high temperatures due to insufficient refrigerant. Below is relevant information about car air conditioning systems: 1. Air Conditioner Layout: Different types of air conditioning systems have varying layouts. Currently, most passenger cars use integrated heating and cooling air conditioning systems. The typical arrangement combines components such as the evaporator, heater core, centrifugal blower, and control mechanisms into a single unit called the air conditioner assembly. 2. System Composition: Modern air conditioning systems consist of refrigeration systems, heating systems, ventilation and air purification devices, and control systems. A car air conditioning system generally includes the compressor, electronically controlled clutch, condenser, evaporator, expansion valve, receiver-drier, piping, condenser fan, vacuum solenoid valve, idle speed controller, and control system. Car air conditioning systems have high-pressure and low-pressure lines. The high-pressure side includes the compressor output side, high-pressure lines, condenser, receiver-drier, and liquid lines; the low-pressure side includes the evaporator, accumulator, return lines, compressor input side, and compressor oil sump.