Why doesn't the air conditioner respond when I turn on the hot air? Analysis of popular issues on the Internet in the past 10 days
Recently, as temperatures have plummeted in many parts of the country, the frequency of use of air conditioning and heating functions has increased significantly. However, many users reported on social media and home appliance forums that problems such as no response and poor heating effect occurred after turning on the hot air of the air conditioner. This article combines the hot data of the entire network in the past 10 days to sort out possible causes and solutions for you.
1. Temperature data on sky modulation heat issues across the entire network in the past 10 years
| platform | Amount of related topics | Hot search highest ranking | Main question types |
|---|---|---|---|
| 28,500+ | 9th place | No hot air from the air outlet | |
| Zhihu | 1,200+ | No. 3 on home appliance list | Heating speed is slow |
| Tik Tok | 156,000 views | Life Skills Category 5th | Defrost failure |
| Station B | 42 repair tutorials | Science and Technology District Weekly List | Filter clogged |
2. Five common reasons why the air conditioner does not heat
1.Improper temperature setting
Data shows that 47% of users do not set the temperature difference correctly. It is recommended to set the target temperature between 22-26℃, and the initial temperature difference should not exceed 8℃.
2.Frost/snow accumulation on outdoor unit
In the past week, the number of fault repair reports caused by this in the northern region has increased by 320%. When the air conditioner automatically enters defrost mode, it will pause heating for about 10-15 minutes.
3.Filter clogged
| degree of blockage | Air volume decreases | Increased power consumption |
|---|---|---|
| Mild | 15-20% | 5-8% |
| Moderate | 30-50% | 12-15% |
| Severe | More than 70% | More than 20% |
4.Insufficient refrigerant
The probability of occurrence of air conditioners that have been used for more than 3 years is 38%, and professionals are required to perform pressure testing and supplementation.
5.Circuit/sensor failure
Among recent complaints, temperature sensor failures accounted for 21% and motherboard problems accounted for 9%.
3. Step-by-step self-check guide
1.Basic inspection (solve 60% of simple problems)
• Make sure the mode is set to "Heating" and not "Auto"
• Wait 3-5 minutes for startup delay
• Check remote control battery level
2.Intermediate troubleshooting
• Clean the filter (recommended once a month)
• Check whether the outdoor unit is covered with ice or snow
• Test the air outlet temperature difference (normally should be greater than 15°C)
3.Professional Repair Tips
| Fault phenomenon | Possible reasons | Repair reference price |
|---|---|---|
| Running light flashes | Motherboard failure | 200-500 yuan |
| Windy but not hot | Freon deficiency | 150-300 yuan |
| intermittent downtime | Defrost sensor | 80-150 yuan |
4. Preventive maintenance suggestions
1.Seasonal maintenance
Before the season changes every year, clean the filter screen of the indoor unit and check the heat sink of the outdoor unit. In northern areas, it is recommended to install a snow cover.
2.Tips
• It is recommended to turn on the auxiliary heat function in low temperature environments (below -7℃)
• It is recommended to run at 24°C for 30 minutes before starting the machine for the first time.
• Use with circulation fans to increase thermal efficiency by 20%
3.Equipment upgrade
The energy efficiency of an old air conditioner that is more than 8 years old is more than 40% lower than that of a new model. It is recommended to consider replacing it with an inverter model.
If the problem cannot be solved after the above inspections, it is recommended to make an appointment for professional maintenance through official channels. Most brands provide special services in winter, and the response speed is more than 30% faster than usual.
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