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Air conditioning heat sink self cleaning skills
In recent days, Guangzhou has experienced a sweltering and humid climate, turning the city into a giant sauna. As a result, air conditioners have been running non-stop in homes across the city. Amid this situation, an increasing number of mobile vendors and online businesses have emerged, offering "air-conditioning cleaning" services. Some claim to be "professional cleaning organizations," but the question remains: are these services reliable? Are the charges transparent? Can they truly deliver effective results? And is it possible to clean your own air conditioner? To find out, we conducted an in-depth investigation.
The air-conditioning cleaning market is rife with unscrupulous players, and prices vary wildly. Uncle Zhao from Futian District decided to get his air conditioner cleaned after noticing that the heat sink was dirtier than a toilet. He found a local repair shop that quoted 50 yuan per unit. Thinking it was reasonable, he agreed. However, during the cleaning, the technician claimed that some parts were damaged and needed replacement, while also suggesting the need for rehydration. The final bill came to 540 yuan, leaving Uncle Zhao feeling cheated.
Similarly, Mr. Wang from Nanshan District had his two air conditioners cleaned by a so-called "professional institution." After paying 860 yuan, he was left confused. The service only involved removing the filter and using a small amount of detergent. He learned that top brands like Gree or Midea typically charge between 200-450 yuan, while cheaper models range from 150-260 yuan. Yet, the service didn’t even touch the heat sink, which is known to be a major source of indoor air pollution.
On the other hand, Ms. Kong from Luohu District chose a street vendor. She paid 320 yuan and initially felt satisfied. But just two days later, her air conditioner started making strange noises, and yellow rust appeared in the drain pipe. When she contacted the manufacturer’s after-sales service, they discovered severe corrosion inside the unit, likely caused by corrosive cleaning agents used by the vendor.
Experts from the Air-Conditioning Cleaning Industry Association warn that the market is highly unregulated. There's no standard pricing, and many companies engage in deceptive practices, such as falsely reporting damage or overcharging. Some even use dangerous chemicals like hydrochloric acid, which can severely damage the unit and pose health risks.
When we visited several "professional" cleaning companies, we found that pricing varied widely. Some charged based on the air conditioner’s size, while others added high labor fees. One company quoted 320 yuan for two hours of work, with 80 yuan per hour for two workers. This kind of pricing can easily lead to inflated bills.
So, is air conditioning cleaning really necessary? According to a survey conducted by the Indoor Environment and Health Branch of the Chinese Society of Environmental Sciences, 88% of air conditioner fins exceeded safety standards, with bacteria levels up to 91,259 per square centimeter—nearly 40 times higher than acceptable limits. Professor Tian Dexiang explained that dirty heat sinks can release harmful particles, causing respiratory issues and worsening conditions like asthma.
To protect themselves, experts advise consumers to follow the "one to, two no" rule: don’t be tempted by low prices, as some cleaners may add unnecessary repairs. Don’t believe in "adding liquid"—most air conditioners don’t need Freon for years unless there's a leak. Also, avoid using inferior cleaning agents, which can damage the unit and pollute the air.
For those who prefer a DIY approach, safe and effective products like Jiaan air conditioner disinfectant are available. Many users report improved air quality and fewer allergy symptoms. In addition, professionals recommend cleaning the heat sink once a month to prevent bacterial growth and maintain good indoor air quality.