The vast majority of hair dryers have an identical device - this is a fairly simple electronic circuit. The switch performs two functions simultaneously - it turns on the heat electric heater (TEN) and the fan. Despite the fact that the heating elements can have various modifications, they invariably have the form of a spring made of nichrome. In the event that the hair dryer is equipped with two regulators that are responsible for the air temperature and blowing speed, the circuit practically does not change.
Instructions
Step 1
In order to learn how to make a hair dryer at home, first examine its internal structure. Remove the top part of the hair dryer body by unscrewing the screws holding it. In the event that you cannot remove the cover, then look carefully, as often additional screws are hidden by means of stickers.
Step 2
Under the case cover, you will see switches, as well as heating elements, which are wound on a single frame and protected by a cover on top. The cover is made of plain paper coated with heat-reflecting paint and impregnated with a non-flammable compound. In the event that the cover is removed or damaged, the case of the hair dryer will become very hot and may even melt. Therefore, if you decide to make a hair dryer at home, then be extremely careful and do not damage anything.
Step 3
And now in more detail about the problems and how to fix them. If there is no increased blowing speed, then there can be two reasons - a capacitor or diode bridge malfunction. In either case, the part must be replaced.
Step 4
If there is no reduced airflow rate, then the diode is faulty, which you must replace. In the event that one of the heating elements does not heat up, then a rupture of the nithrome thread has occurred. Find the break and carefully twist the two ends of the wire.
Step 5
If the hair dryer does not turn on, then there is no contact on the switches. If you decide to make a hair dryer at home, carefully disassemble the switches, then thoroughly clean all contacts with alcohol and stretch the receiving springs.
Step 6
If the hair dryer engine does not work, then there can be three reasons. The first is that the heating element-3 is faulty. In this case, find the break point and twist the ends tightly. The second reason is a malfunction of the diode bridge, which must be replaced. And the third reason that the hair dryer engine does not work is its malfunction. In this situation, the entire engine must be replaced.
