If the hair dryer does not respond when powered on, the power switch, circuit, fan motor or electric heating element is faulty. If you have relevant professional skills, you can properly disassemble and check to see where the abnormal fault is, and then make necessary repairs. If you do not have relevant professional knowledge, it is recommended to find a local appliance repair shop to inspect and repair it.

A hair dryer is composed of a set of electric heating wires and a high-speed small fan. When energized, the electric heating wire will generate heat, and the wind blown by the fan passes through the electric heating wire and becomes hot air. If only the small fan is rotating but the heating wire is not hot, then the air blowing out will be just wind but no heat. The air blown by the hair dryer is dry air. If it is used for too long, it will easily cause moisture loss and cause thermal damage. The secret to minimizing the damage is to pat dry the moisture on the hair with a towel and gently use your hands. Comb your hair before using a hair dryer.

The hair dryer directly relies on the motor to drive the rotor to drive the fan blades to rotate. When the fan blades rotate, air is sucked in from the air inlet, and the resulting centrifugal airflow is blown out through the front nozzle of the hair dryer. When the air passes through, if the heating wire on the heating bracket installed in the air nozzle is energized and heated, hot air will be blown out; if the selector switch does not enable the heating wire to be energized and heated, cold air will be blown out. This is where the hair dryer is used for drying and shaping purposes.