How to deal with the noisy air conditioner heating
With the arrival of winter, many families have begun to use air conditioners for heating functions. However, many users have reported that air conditioners make loud noises during heating, which affects the quality of life. This article will combine the hot topics and hot content on the Internet in the past 10 days to analyze the reasons for the loud heating noise of air conditioners and provide practical solutions.
1. Common causes of loud air conditioning heating noise
| Cause classification | Specific performance |
|---|---|
| Equipment aging | Used for more than 5-8 years, internal parts are worn |
| Installation issues | The bracket is loose and the outdoor unit is tilted |
| Filter clogged | Dust accumulation causes poor airflow |
| Compressor load is heavy | High power operation in low temperature environment |
| Insufficient refrigerant | Abnormal system circulation produces abnormal noises |
2. 6 practical solutions
1. Cleaning and maintenance
Clean the filter once a month and perform deep maintenance once a year. Dust accumulation on the filter will force the fan to run at high speed and increase noise. You can use a vacuum cleaner or soft brush to clean it.
2. Check the installation stability
The screws of the outdoor unit bracket are easy to loosen, so it is recommended to tighten them with a wrench; check whether the shock-absorbing rubber pad is aging and replace it with a special shock-absorbing pad with a thickness of ≥3cm.
| Check items | operating standards |
|---|---|
| Bracket level | Error≤3 degrees |
| Fixing bolts | M8 or above specifications |
| Wall load-bearing | ≥200kg/m² |
3. Adjust operating mode
Set the fan speed to automatic mode to avoid continuous high-speed operation; turn on the "silent" function (if available) to reduce the noise by 3-5 decibels.
4. Professional maintenance
If the following situations occur, you need to contact after-sales service:
- Metal collision sound (possible fan deformation)
- High-pitched whistling (refrigerant leakage)
- Continuous vibration (compressor failure)
5. Environment optimization
Leave more than 30cm of space around the outdoor unit; the installation location should avoid direct sunlight; it is recommended to install a windproof cover for high-rise buildings.
6. Device updates
It is recommended to replace old air conditioners (below energy efficiency label level 3). The heating noise of new inverter air conditioners is generally ≤40 decibels (equivalent to the ambient sound of a library).
3. TOP3 effective solutions tested by users
| Plan | Implementation cost | Performance rating |
|---|---|---|
| Install shock absorbing bracket | 150-300 yuan | ★★★★☆ |
| Replace the anti-vibration rubber pad | 50-80 yuan | ★★★☆☆ |
| Deep cleaning evaporator | 120-200 yuan | ★★★★★ |
4. Preventive maintenance suggestions
1. Conduct a comprehensive inspection before the season changes every year
2. Test run for 30 minutes before use in winter
3. When not in use for a long time, turn off the power and put on a dust cover.
4. Record the working conditions (temperature/wind speed/duration) when abnormal noise occurs
Through the above methods, more than 90% of air conditioning and heating noise problems can be significantly improved. If the problem remains unresolved after trying, it is recommended to make an appointment for professional testing services through official channels. Proper maintenance can not only reduce noise, but also extend the service life of the air conditioner by 2-3 years.
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