What should I do if the central air conditioner is not cooling? Full analysis of popular issues in 10 days
The recent hot weather has continued, and central air conditioners not cooling have become a hot topic on the Internet. According to statistics from social media and maintenance platforms in the past 10 days, the number of central air-conditioning fault consultations increased by 35% year-on-year. This article will systematically analyze common causes and solutions, with reference to the latest maintenance market data.
1. Analysis of popularity data of the entire network (last 10 days)

| platform | Amount of related topics | TOP3 high frequency problems |
|---|---|---|
| 128,000 items | Frost on the air outlet/refrigerant leakage/blocked filter | |
| Douyin | 32,000 videos | Abnormal noise from the outdoor unit/temperature control failure/sudden shutdown |
| Baidu search | Average daily 86,000 times | E1 fault code/surge in power consumption/refrigerant pressure |
| Home Appliances Forum | 4700 posts | Damaged pipe insulation/backflow of condensate/unstable voltage |
2. Common fault causes and solutions
| Fault phenomenon | Possible reasons | DIY treatment | Need professional repair |
|---|---|---|---|
| The wind is not cold | The filter is clogged (42%) | Clean the filter | Insufficient refrigerant/compressor failure |
| intermittent shutdown | Voltage instability (28%) | Check circuit | Motherboard damage/capacitor aging |
| Abnormal noise | Fan bearings are short of oil (31%) | Lubrication | Motor damage/wind wheel deformation |
| Condensate leakage | Clogged drain pipes (65%) | Unclog pipes | Installation slope error |
3. Reference for the latest quotations in the maintenance market
| Services | average market price | Floating in peak season |
|---|---|---|
| Refrigerant filling | 150-300 yuan/pressure | +20% |
| Circuit maintenance | 80-200 yuan | +15% |
| Compressor repair | 500-2000 yuan | +30% |
| deep cleaning | 300-600 yuan | +25% |
4. Preventive maintenance suggestions
1.Clean filter every month: Accumulation of dust will reduce cooling efficiency by 30%
2.Pre-season start-up testing: Trial run 2 weeks in advance to identify potential problems
3.External unit heat dissipation guarantee: Keep the surrounding area 50cm clear of obstructions
4.Intelligent monitoring equipment: Install current monitor to warn of abnormal power consumption
5. Emergency handling procedures
when appearsSmoke, burnt smell, or frequent trippingWhen:
① Cut off the power immediately
② Contact the brand after-sales service (keep the proof of purchase)
③ Take a video of the malfunction as evidence for rights protection
④ Avoid disassembly by yourself (warranty may be lost)
Note: Air conditioning complaint data in 2023 shows that70% of serious failuresIt comes from ignoring initial minor problems. It is recommended to perform professional maintenance at least once a year, which can extend the life of the equipment by 3-5 years.
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