What is the cause of the noise when the ceiling fan light is running

A. Check whether the screws and lampshade parts are firm and whether the screw specifications are used incorrectly. (Various sizes of screws are available in the screw bag)

B. In the case of checking the installation without problems, you can try to remove the lamp holder to observe, if there is still sound, remove the blade and observe the motor in the case of no-load will not have a sound, if there is sound, you need to observe whether the friction sound, if yes, check whether the motor and the market have scratched the phenomenon, after determining the screwdriver gently pry the black leaf disk can be solved.