What is the function of the capacitor on the household hair dryer?

The function of the capacitor in the hair dryer is to keep the working voltage stable.

If the heating wire of the hot air gear heats up, but the motor does not turn, and the front cylinder is overheated but there is no hot air blowing out, it is mostly a problem with the capacitor, and the capacitor needs to be replaced.

Working principle of hair dryer:

When the blower is connected to the power supply, the motor drives the blades to rotate, so that air is sucked from the air inlet, heated by the electric heating element, and hot air is blown out from the air outlet. The electric hair dryer sends out hot air with different temperatures by adjusting the number of electrified electric heating elements, and also adjusts the air supply temperature and air supply volume by adjusting the external power supply voltage.