What should I do if the car air conditioner is not cold? Summary of popular solutions on the entire network in 10 days
Recently, as the temperature continues to rise, the issue of car air conditioning and refrigeration has become a hot topic among car owners. The following are popular discussions and solutions on "car air conditioners are not cool" in the past 10 days on the entire network, which are clearly presented to you through structured data.
1. Common causes and proportion of failures
| Cause of failure | Frequency of occurrence | Typical Symptoms |
|---|---|---|
| Insufficient refrigerant/leakage | 45% | Air output is normal but temperature is high |
| Condenser blockage | 25% | The high-pressure tube is extremely hot when the air conditioner is running |
| Compressor failure | 15% | There is an abnormal noise when the air conditioner is started or no cooling is done at all |
| Air conditioner filter element dirty | 10% | Air output is significantly reduced |
| Circuit/Sensor Problems | 5% | Intermittent failure of the air conditioner |
2. Effective solutions for car owners to test
According to popular feedback from platforms such as Douyin and Auto Forum, the following methods have been verified to be valid many times:
| method | Operation steps | Applicable scenarios |
|---|---|---|
| Self-test refrigerant pressure | 1. Buy a pressure gauge to detect high and low pressure 2. Low voltage normal value 30-50PSI 3. High voltage normal value 150-250PSI | Insufficient refrigerant is suspected to be leaked |
| Clean the condenser | 1. Rinse with a high-pressure water gun at 45 degrees 2. Avoid damaging the heat sink 3. Operation once a year before summer | Air conditioner cooling efficiency decreases |
| Replace the air conditioner filter element | 1. Find the filter cover at the rear of the glove box 2. Take out the old filter element and pay attention to the direction 3. Install a new filter element (activated carbon model is better) | Air volume at the outlet is weakened |
3. Reference for maintenance costs (latest data in 2023)
| Repair Project | 4S store quotation | Third-party repair shop quotes |
|---|---|---|
| Refrigerant filling | 300-500 yuan | RMB 150-300 |
| Compressor replacement | 2000-4000 yuan | 1200-2500 yuan |
| Condenser cleaning | RMB 200-400 | 80-200 yuan |
4. Warning of special problems for popular models
According to the complaint data of Cheyu Net, the following models need special attention:
| Car model | High incidence problems | Solution suggestions |
|---|---|---|
| 2018 German A-class car | Evaporation box leak | Replace aluminum alloy modifications |
| 2020 Japanese SUV | Compressor solenoid valve fault | Upgrade ECU program + replace valve body |
5. Expert advice
1.Quick self-test skills: After starting the air conditioner, touch the low-pressure tube. Normally, there should be a clear cool feeling. If the temperature is normal, there may be a lack of refrigerant.
2.Maintenance cycle: Replace the refrigerant every 2 years and check the air conditioning filter element every 5,000 kilometers.
3.Emergency handling: The external circulation + window ventilation combination mode can be temporarily turned on during long-distance driving.
Through the above structured data, car owners can quickly locate problems and take corresponding measures. If the problem is complicated, it is recommended to use the free trailer service provided by the insurance company to go to a professional repair site.
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