What does the X-FAN function do and when can it be used?
The X-FAN function blows away water on the evaporator after the unit is turned off in order to avoid mildew. It can only be activated in cool or dry mode by pressing the X-FAN button. When the icon is displayed, X-FAN is on; when it is not displayed, X-FAN is off. (Page 4-5)
From the official Gree Yap1f IR Remote Control manual, page 5
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