Why don’t the air conditioner cool? A complete analysis of common causes and solutions
As the temperature rises in summer, air conditioning becomes a must-have appliance for homes and offices. However, many users reported that the air conditioner suddenly did not cool down, which seriously affected the user experience. This article will combine popular topics and user feedback on the entire network for the past 10 days to analyze common reasons why air conditioners do not cool down and provide structured solutions.
1. Hot search data related to air conditioning maintenance in the last 10 days on the entire network
| Hot search keywords | Search volume peak | Mainly concerned about regions |
|---|---|---|
| Air conditioner does not refrigerate | Average per day 120,000 times | Guangdong, Jiangsu, Zhejiang |
| Air conditioner repair cost | Average daily 85,000 times | Beijing, Shanghai, Sichuan |
| Air conditioner plus fluorine | Average per day 62,000 times | Hubei, Hunan, Henan |
| Air conditioner cleaning | Average per day 58,000 times | Shandong, Hebei, Fujian |
2. 6 common reasons why air conditioners do not refrigerate
According to statistics from home appliance repair platform, the problem of air conditioners not refrigerating mainly focuses on the following aspects:
| Question Type | Percentage | Typical Symptoms |
|---|---|---|
| Refrigerant leak | 38% | The refrigeration effect gradually deteriorates, and there are oil stains on the external pipe |
| Filter clogging | 25% | The air volume at the outlet is small, the internal unit is frosted |
| Capacitor failure | 15% | The external fan does not rotate or starts |
| Four-way valve failure | 12% | Heating and cooling mode is messy |
| Temperature sensor failure | 7% | The temperature display is abnormal, and frequent start and stop |
| Unstable supply voltage | 3% | Intermittent shutdown of air conditioners |
3. Self-service inspection guide
1.Basic inspection (user can operate it by itself)
• Check the remote control settings: Confirm the mode is set to "Cooling", and the temperature is lower than room temperature
• Clean the filter: Remove the filter and rinse it with clean water, dry it and then replace it.
• Observe the external unit: Confirm whether the fan is rotating and whether there is obvious dust accumulation in the heat sink
2.Professional maintenance advice
• Refrigerant detection: Professional pressure gauge is required to measure system pressure
• Circuit detection: Use a multimeter to check the capacitor and compressor resistance value
• System leak detection: Professional equipment such as fluorescence leak detectors are required
4. Reference for maintenance costs
| Repair Project | Average market price | Warranty period |
|---|---|---|
| Fluoride (R22) | RMB 150-300 | 3 months |
| Replace the capacitor | RMB 80-150 | 6 months |
| Clean the internal machine | RMB 100-180 | - |
| Replace the four-way valve | 300-500 yuan | 1 year |
V. Preventive maintenance suggestions
1.Seasonal maintenance
• Pre-season: Professional deep cleaning (including evaporators, wind wheels)
• Disable season: Turn on the "breath supply" mode to dry the moisture of the internal unit
2.Daily maintenance
• Clean the filter once a month
• Keep 50cm around the outer unit without any obstruction
• Avoid frequent power switch (interval should be >3 minutes)
6. Consumers’ precautions
Recent data from the complaint platform shows that there are the following common problems with air conditioning maintenance:
• False fluoride addition: Some maintenance workers falsely claim that they lack fluoride and directly add
• Miscellaneous illness repair: exaggerate the simple fault and require replacement of the motherboard, etc.
• Price trap: No quotation in advance, ask for a price at will after repair
It is recommended to choose an official after-sales service or formal maintenance platform, and require the fee details to be presented and the old parts are kept for inspection. If the air conditioner has been used for more than 8 years, the maintenance value may be lower than 30% of the price of the new machine. It is recommended to consider replacing the new machine.
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