1: The blower is broken.

2: The electric furnace wire is burnt out.

3: The air duct is closed.

Hair dryer is mainly composed of hair dryer, wire and air duct. When there is a problem, it is usually one of them.

Hair dryers are mainly used for hair drying and styling, but they can also be used for local drying, heating and physical therapy in laboratories, physical therapy rooms, industrial production and artistic design. According to the type of motor used, it can be divided into AC series excitation type, AC shielded pole type and DC permanent magnet type. Series-excited hair dryer has the advantages of large starting torque and high rotating speed, and is suitable for manufacturing high-power hair dryers. The disadvantage is that the noise is high, and the commutator has certain interference to telecommunication equipment. The advantages of hood-pole hair dryer are low noise, long service life and no interference with telecommunication equipment. Disadvantages are slow speed, poor starting performance and heavy weight. The advantages of permanent magnet hair dryer are light weight, high rotating speed, simple manufacturing process, low cost, good quality and low price.

The specifications of hair dryers are mainly divided by electric power, and the commonly used specifications are 250 watts, 350 watts, 450 watts, 550 watts, 850 watts, 1000 watts, 1200 watts, etc. Although the types, styles and sizes of hair dryers are quite different, their internal structures are basically the same, and they are mainly composed of three parts: motor and its driving blades, heating elements and electrical control switches. The motor, blade and housing structure are combined to form a micro blower.