For normal servicing :-

Dismantle cover and water tray(if can dismantle) and clean.

Dismantle blower and clean (for some brand) / Clean blower with water pump

Check and DRY clean the outdoor unit if necessary. ( if very dirty, need top up payment for washing outdoor unit)

对于正常维修：-

拆卸盖子和水盘（如果可以拆卸）并清洁。

拆卸鼓风机并清洁（某些品牌）/用水泵清洁鼓风机

如有必要，检查并干洗室外机。 （如果很脏，需要补足清洗室外机的费用）