Hong Kong's Consumer Council has released findings from its latest testing of 12 "2-horsepower" inverter split-type air conditioners, revealing substantial differences in energy efficiency among models carrying identical Grade 1 energy ratings. The report highlights how the most efficient units can save consumers up to 27.4% on annual cooling costs compared to the least efficient models in the same category.
The comprehensive evaluation comes amid growing consumer complaints about air conditioning products, with 191 cases reported in 2024 alone - a noticeable increase from previous years. Of particular concern is the wide variation in warranty coverage, where seven out of twelve tested models offer only one year of full-unit protection, despite air conditioners typically being long-term investments.
Consumer Council Chief Executive Gilly Wong emphasized the need for industry improvements, stating that while repair costs remain market-determined, the Council will actively advocate for more favorable terms for consumers. This includes pushing for extended standard warranty periods and more affordable extended coverage options, as current post-warranty inspection fees range significantly from HK$410 to HK$950 in urban areas.
The testing also uncovered notable performance differences in dual-function cooling/heating models. While all five tested units carried the same Grade 1 energy efficiency rating for both functions, their actual performance varied considerably. The most efficient cooling units outperformed the least efficient by 27.4%, while heating efficiency showed a 10% differential between top and bottom performers.
These findings have prompted the Consumer Council to call for more frequent updates to Hong Kong's energy rating standards by the Electrical and Mechanical Services Department. The Council also advises consumers to look beyond initial purchase prices and energy labels when selecting air conditioners, recommending careful consideration of long-term operating costs and warranty terms.
With air conditioner complaints showing a steady increase - from 174 cases in 2022 to 191 in 2024 - and five cases already reported in the first quarter of 2025, the Council plans to intensify its engagement with manufacturers to address these quality and consumer protection issues.
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