Sometimes normal ventilation plant cooling equipment fan rotation speed will slow down, you might want to turn a big problem, in fact, this is because the fan dusty, you need to find professionals to give it a wash clean; but If you want to wash your own, then it is also possible, but when you wash must first turn off the power, cleaning not too hard, so as not to damage the fan, this will result in greater fault! Recommended that you wear a pair of gloves to clean, to avoid injury to yourself!

Normal is no procedure for cleaning fluid different also, but it is best to select specialized cleaning cooling equipment to avoid any problem. Also, if dust is not simply a result it must invite professionals to come, I do not take the pace it!