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Home > Service & Support > Troubleshooting > How to change the fan speed grade of cassette type unit by 201AFK wired controller?
Question: How to change the fan speed grade of cassette type unit by 201AFK wired controller?
Answer:
Press "Menu"+“plus” bottun together for 5secs, enter the advanced setting, choose function code"b-11", press confrim button enter the indoor unit installation height  setting, choose "0-low/1-normal/2-high", the default is 1, when we choose the others height, all fan speed grades for this idu adjust up or down by one grade.


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