The following is my answer, the millet wireless charger fan may not turn for the following reasons:
Fan blockage or rotation: In this case, you can try to remove the fan to clean or lubricated, in order to make its rotation more smooth.
Internal fan failure: If there is an internal failure of the fan, such as a problem with the motor or a damaged circuit board, then the fan will not work properly. Remove the fan to check details. Repair or replace the fan according to the severity of the problem. Failure of the charger itself: If there is a fault in the charger itself (such as a damaged power supply or a problem with the circuit board), the power output of the charger may not be enough to drive the fan to operate properly. The charger needs to be replaced.
The phone is not properly placed in the center of the charger: Make sure that the phone is placed in the center of the charger so that the charger can recognize and charge it.
The charger and the phone do not match: Please make sure that the charger you are using is officially paired with the phone, if not, please buy an official charger.
Power tube fixed is not tight: if the power tube is fixed is not tight, there may be overheating and burning out, please contact after-sales maintenance for professional inspection and maintenance.
If the above methods can not solve the problem, it is recommended to contact Xiaomi official after-sales customer service for consultation and maintenance.
Should be rotating, as long as the power will rotate heat dissipation.