- 7/15/2024
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How does a car's air conditioning system work?
The principle of the air conditioning system in your car is simple and easy, as the compressor, known as the compressor, which derives its movement from the rotation of the engine, works by compressing the refrigerant gas, which makes it in a state of high pressure, and this leads to its transfer from the compressor to the condenser through the hoses.
When the liquid passes through it, it loses pressure and temperature, which leads to its cooling, then it moves to the dryer, which works to remove water from the refrigerant using a drying agent to avoid clogging the meter.
Then it goes to the evaporator, which converts the coolant to its basic gaseous state, here it is at its coldest state and the resulting cold air is pumped to the air vents inside the car.
Since the air conditioning system is very important in Kuwait, Motorgy offers you used cars for sale in Kuwait that are fully inspected in addition to the air conditioning system, so you can buy the car you like with the assurance that it is trouble-free and that you are aware of its full condition before buying.
Air conditioning parts
The main parts of the air conditioning system are as follows:
Condenser
The AC condenser is located behind the main cooling system radiator behind the front grille, and its function is to reduce the temperature of the refrigerant while maintaining its high pressure, and at this point, the refrigerant changes from a gaseous state to a liquid as it cools.
Dryer
The dryer is located between the condenser and the gauge, the dryer removes water from the coolant using a drying agent to avoid clogging the gauge, it also filters the liquid from deposits, dust and any metal particles mixed in it that may damage the entire system.
Metering device
Every car air conditioning system has a metering device that controls the amount of refrigerant that passes through the rest of the system, usually this device is either an expansion valve or a fixed orifice tube installed on the high-pressure side of the system, and it functions to reduce the pressure and cool the coolant quickly.
Evaporator
The last part of the air conditioning system is the evaporator, located behind the dashboard inside the car, which is responsible for turning the refrigerant into its gaseous state that gives the coolness in the car, that is, the cold air that you feel coming out through the air vents in your car.
Compressor
The compressor or compressor, which is operated by the serpentine belt or the main engine belt, works as a power unit for the A/C system, as it works to separate the low-pressure side from the high-pressure side, and compresses the low-pressure gas and converts it into a gas with higher heat and pressure.
Common air conditioner malfunctions
As for the most common car air conditioner malfunctions, they are as follows:
Compressor damage or weakness
If the compressor is damaged or weakened, the cooling process will not be completed, and you will not get cool air inside the car, and it can be damaged or weakened due to lack of use, age, or due to an electrical issue that led to a malfunction.
Refrigerant leakage
Coolant leaks can occur in any part of the A/C system, especially from hoses and fittings as the car ages / accident or one of the below-mentioned parts.
Condenser Damage
The condenser can be damaged or clogged by something hitting it from the road such as a rock or a large pothole, which makes it unable to cool the liquid properly, and this will result in blowing hot air inside the car instead of cold.
Electrical issues
The air cooling system can be exposed to electrical issues, especially in the wires connections, where they can be damaged, cracked and disconnected, due to wear and tear or poor maintenance, or other factors.
Failure of cooling fans
When the cooling fan(s) are not working properly, the gas inside the condenser is not cooled as it should be, and since today's car fans are electric fans, failures are due to an issue with either the electricity or the fan transformer itself.
