Why fan is rotating in anticlockwise but not in clockwise?
If it is a ceiling fan, then there is a little chain on the base of the fan, not the light chain...usually on the opposite side, that you need to pull and it will change direction.
lay on the floor and look up at it. If it is moving the same direction as a clock it is moving clockwise. Hold a piece of tissue paper at a corner such that it is near (but not touching) the fan blades. If the fan lifts the paper toward the ceiling then it is rotating clockwise. This is best for winter. If the fan pushes the paper toward the floor (causing a breeze) then…
Why the fan rotates in anticlockwise direction and why it was not designed to rotate in clockwise direction?
A radiator cooling fan assembly attached to a water pump via a thread will always be tightened by the natural rotational direction by the fan... For example - If the fan rotates in a 'clockwise' direction, the thread holding it on will be 'left-handed'; it follows that a fan spinning 'anticlockwise' will have a 'right-handed' thread.