customs transaction analysis

List of the catalog of this article:

• 1、How to repair car air conditioner
• 2,customs transaction analysis Professional car air conditioning repair knowledge
• 3, car air conditioner maintenance cost

how to repair car air conditioner

car air conditioner maintenance method When the low pressure ratio of the air conditioning system is detected with an air conditioning pressure gauge When the high pressure is usually lower than normal, the air conditioning refrigeration can never achieve the effect of normal air conditioning at this time. The general failure is caused by wear in the air conditioning pump, resulting in a decrease in power. At this time, it is often necessary to replace the compressor to solve the problem.

How is the car air conditioner composed and how to maintain it? The structural principle of the car air conditioner system The car air conditioner is composed of compressors, condensers, air conditioning pipes, evaporators and electrical lines, etc. It uses the continuous frequency conversion cycle of the refrigerant to achieve the cooling effect.

Determining the problem First of all, it is necessary to determine the specific problem of the car air conditioning circuit. Common problems may include: the air conditioner does not cool, the air conditioner does not work, the air conditioner fan does not turn, etc. By checking the problem, it can be better repaired. Check the power supply. Check whether the power supply of the car air conditioner is normal.

First, listen to the driver's statement of a certain fault in the operation of the air conditioner. The system should make a judgment, and then confirm that it is a certain part, and then confirm a certain part or pipeline, and use suitable methods to carry out various exclusions or repairs.

Professional car air conditioner repair knowledge

Car air conditioner maintenance When the air conditioner pressure gauge detects the low pressure ratio of the air conditioning system is normal High, and when the high pressure is lower than normal, the air conditioning refrigeration at this time can never achieve the effect of normal air conditioning. The general failure is caused by wear in the air conditioning pump, resulting in a decrease in power.

No matter what season the maintenance of the car air conditioner is, users should choose the appropriate air conditioner temperature when using the air conditioner. The air conditioner temperature should not be too high or too low, as long as the air conditioner temperature is suitable.

Car air conditioner maintenance method When the air conditioner pressure gauge detectsWhen the low pressure of the tuning system is higher than normal, and the high pressure is lower than normal, the refrigeration of the air conditioner can never achieve the effect of normal air conditioning at this time. The general failure is caused by wear in the air conditioning pump, resulting in a decrease in power. At this time, it is often necessary to replace the compressor to solve the problem.

The maintenance of the automobile air conditioning circuit requires certain electrical knowledge and skills. The following are some common maintenance methods: check the circuit connection: check whether the connection of the air conditioning circuit is tight, whether there is looseness or corrosion, and if there is a need to reconnect or replace the connector.

At this time, it is recommended to go to a 4S store or a professional repair shop for further inspection. Check the air conditioner compressor belt. The tightness of the compressor transmission belt can directly affect the performance of the car air conditioner. The belt will age and loosen after a period of use, and it will make a "squeaky" sound at this time.At this time, we must adjust the tightness of the compressor belt in time.

Automotive air conditioning maintenance cost

1. First of all, the diagnosis fee. When the car air conditioner fails, professional technicians are needed to diagnose to determine the cause of the problem. The cost of diagnosis is usually determined by working hours and the experience of the technician, generally between 100 and 500 yuan. The second is the maintenance fee. Depending on the specific type of fault, the maintenance cost may vary.

2. In a word, the maintenance price of car air conditioners varies depending on the fault situation and different models, generally between 200 yuan and 5,000 yuan. In order to avoid unnecessary losses, it is recommended that car owners maintain the car air conditioning system regularly and deal with air conditioning failures in time to ensure safe and comfortable driving.

3. Fluorine leakage point detection fee: Technicians need to use professional Freon leakage detection instruments to test the air conditioning system and find the location of fluorine leakage. The cost of this step is usually fixed, about 100-300 yuan.