Unplug the "Micro Cooling Fan" plug and carefully open the housing and blades. Then, like the same way into the pool cleaning. After washing, and dry with a towel. Finally, it is installed intact. "Micro Cooling Fan" has turned, however, now appears to have a new look. Fans turned again, but now appears to have a new look. At this time, I seem to hear the "Micro Cooling Fan" said to me: "Thank you, young master, thank you for bringing me clean." I laughed, I feel even sweeter than honey to eat!