Hi Max, The noise you are experiencing is not from the motor, it is actually the moving fan rubbing against the plastic housing on top. Try moving the fan a bit with you hand and the noise should go away. The A11 or M11 is held by a ball-like structure to the ceiling bracket, it sways a bit if the fan is hit by a strong gust of wind when the windows are open, hence you may experience such ticking noise occasionally. I have 4 units of KDK ceiling fans in my house (1xAY11, 2xMU11, 1xV60) and I am very happy with them. They have not given me any major problems in the last 3-4 years except the abovementioned minor issue. Hope this helps.