The AC system helps to cool the air in the passenger compartment and clean it from foreign smells. It functions from an internal combustion engine and are combined with a heating system.
The principle of the AC system operation is quite complicated. It implies cooling the air through the use of refrigerant. The working substance enters the compressor and it becomes liquid when the temperature increases. The refrigerant enters the evaporator and moves along special tubes. When the fan turns on, the air in the passenger compartment cools. The heat is transferred to the refrigerant. The refrigerant then goes back to the gaseous state. Such processes are repeated all the time.
The main causes of the air conditioner failure
Vehicle air conditioner - a mechanism consisting of several important parts. When it is under operation, a comfortable environment is created in the car interior. This has a positive effect on the health of the driver and passengers. When the assembly fails, the trip safety decreases. In a stuffy passenger compartment, the driver's reaction speed and attention concentration are reduced. Below you will see a diagram of the temperature in the compartment equipped with air conditioning system and without it.
What are the reasons for repairing car air conditioners? The main negative factors include temperature changes, vibration and pollution of the mechanisms. Another problem arises from the leakage of freon and the depressurization of the system. Malfunctions take place under a reduced cooling capacity, oil stains on the compressor, extraneous noise and an unpleasant smell.
Troubleshooting of air conditioners
To ensure a smooth operation of air in the compartment, diagnostics of AC system is highly recommended. This is a complex process involving the identification and elimination of malfunctions. It is carried out for preventive purposes and when problems arise in the operation of the system.
Auto AC compressor test equipment for the diagnostics of air conditioners helps to conduct necessary manipulations. MSG Equipment test benches for testing AC system have good functional characteristics. They are specially invented to check the technical condition of the vehicle. It is easy to detect breakdowns in the air cooling system with their help.
One of the most popular more stands is designed for troubleshooting. This is MS111 manufactured to assess the technical condition of the AC compressor, control valve, electromagnetic clutch. There are several adapters for different models of compressors in the automotive AC tools set.
Automotive air conditioner repair with your own hands
If problems occur, you need to take measures to eliminate them. You will not be able to cope with all the failures independently because for this regard you need to have the necessary knowledge and the appropriate air conditioning testing equipment at your disposal. For example, when you need to refuel the car air conditioner, you need to visit a service center. Specialists will do everything quickly and accurately using specialized air conditioning test rigs.
We will soon launch air conditioning online courses, stay tuned to be the first to sign up!
If you understand how the air cooling system works and want to solve the problem independently, take into account our advice:
- the evaporator malfunction arises from the plugging of the excess moisture drain pipe
- the fan failure requires replacement of the worn out bearing, brushes, fuses
- unpleasant smell can be removed by spraying cleaning agents into the air ducts and the evaporator
In order for the air conditioner to function stably all year round, it is necessary to periodically turn on the system for 10 minutes (if the ambient temperature is more than 5 °C) in winter and blow the condenser. If you need to refuel and install a new system, you need to contact a qualified masters, this work requires a specialized ac recovery machines.
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