Noisy KDK K14Y9

This fan in my living room

Looking forward this fan, because I in last year to fix the motor but is pretty less bad

[Quran.islamic]

thats why somethings changing a bearing into bad bearings of the motor

[sekkyee]

Speed no.1 no sound, speed no.2 & no.3 very noise

[avalanceyy]

I have 3 units of it. All generated humming noise like this. The only thing can be done is !@@#$%^&& the KDK manufacturer.