Why does a hair dryer sometimes break down after a long period of use, and then get better after a w

It isHair dryercaused by the overheating protection function turned on. If the hair dryer is used for too long, it may cause the internal heat of the machine to be too high, which will lead to the burning of components or hair loss, so when the temperature is reached, the overheat protection function is turned on, and the machine will automatically stop running, and it can return to normal when it cools down.

A hair dryer is a combination of a set of heating wires and a small fan with high speed. When the electricity is turned on, the heating wire will generate heat, and the air blown by the fan will pass through the heating wire and become hot air.

If only the small fan is rotating, and the heating wire is not hot, then only the wind is blowing out but not hot. The air blown by the hair dryer is dry wind, and if it is used for too long, it is easy to cause water loss and heat damage.

How it works

When the fan blade rotates, air is sucked in from the air inlet, and the centrifugal air flow formed by this is blown out by the front mouth of the hair dryer. When air passes through, it heats up if it is installed in the nozzle.

The heating wire on the bracket has been energized and turned hot, and hot air is blown out; If the selector switch does not energize the heating wire, cold air will be blown out.

The selection switch on the handle of the hair dryer is generally divided into three gears, namely the off gear, the cold air gear, and the hot air gear, and is accompanied by white, blue, and red signs. Some hair dryers are also equipped with motor speed switches on the handle, which can be used to select the size of the air volume and the temperature of the hot air. Behind or on the side of the shell of all kinds of hair dryers, there is a rotatable circular air control hood, which can be rotated to adjust the cross-sectional size of the air inlet.

The above content refers to Encyclopedia - Hair Dryer.

That's not broken, it's that there is an overheating protection, which will automatically power off to protect the circuit after overheating for a long time, and it can be used again after cooling.

Practice has proved that no, my hair dryer has been 15 years if not 20 years, and it is still thriving as long as it is not damp.

Hair dryer is a kind of hair drying tool that we often use, and it is also a common phenomenon for hair dryers to burn out. So, what causes hair dryers to burn out? Let me tell you!

What is the cause of the hair dryer burning

1. Whether the switch is deformed, whether there are scorch marks and peculiar smells, and if so, the possibility of the switch burning out can be considered;

2. Check the vent of the hair dryer, if there is an obvious burning smell, it is not excluded that the motor winding may be burned out;

3. Check the air outlet, whether the shell is deformed, if there is no rule out that the heating wire or temperature control diode is burned.

In addition to the first case, you can repair the replacement parts, and in the other two cases, if you are not familiar with the professional knowledge of electrical repair, from a safety point of view, it is recommended that you send it for repair or replace it with a new one.

The correct use of hair dryer, hair dryer maintenance skills

1. When using the electric hair dryer, its air inlet and outlet must be unobstructed, otherwise it will not only fail to achieve the use effect, but also cause overheating and burn the utensils.

2. When used to dry wet hair, the air outlet of the electric hair dryer should be kept at a certain distance (not less than 50mm) from the hair to prevent the air outlet from being blocked and the hair from being burned. At the same time, it is important to keep a certain distance to avoid water vapor generated when drying hair that affects the dielectric strength and cause leakage.

3. The hair dryer must be used under the power supply voltage specified on the nameplate. For hair dryers with three-wire power cords, the grounding wires should be properly connected.

4. Before the end of use, try to switch the hair dryer from the "hot" to the "cold" mode first, so as to cut off the power supply of the electric heating element first. Then let the remaining heat of the electric heating element be blown out by the cold air, so that the internal temperature of the electric hair dryer will be reduced, and then all the power will be cut off.

5. The electric hair dryer should be placed in a dry place when it is not in use, and should not be placed in the open air or wet place, and when it is taken out after long-term use, the insulation resistance should be checked first, and it can be used normally under the requirements to ensure personal safety during use.

6. The electric hair dryer should not be used continuously for too long, and should be used intermittently to avoid overheating and burning out of the electric heating element and motor.

Hair dryerIt is a kind of hair drying tool that we often use, and it is also a common phenomenon that the hair dryer burns out. So, what causes hair dryers to burn out?

The following is studied by the Study. Let me introduce to you, what is the cause of hair dryer burnout? 1. Whether the switch is deformed, whether there are scorch marks and peculiar smells, and if so, the possibility of the switch burning out can be considered; 2. Check the vent of the hair dryer, if there is an obvious burning smell, it is not excluded that the motor windings may be burned out; 3. Check whether the air outlet and shell are deformed, and if so, do not exclude the heating wire or temperature control diode.

Burnout. Except in the first case, you can change parts for repair. From a safety point of view, it is recommended that you repair or replace it.

The correct use of hair dryer, hair dryer maintenance skills 1When using the air dryer inlet and outlet nozzle, it must be ensured that the air outlet must be unobstructed, otherwise it will not only fail to achieve the use effect, but also cause the hair dryer to overheat and be burned. 2.

When used to wet the engine, keep a certain distance between the electric hair dryer and the air outlet (not less than the occasion) between the hair outlet to prevent the air vent from being blocked and burned.

Hair. At the same time, avoid blowing dry water vapor.

Leakage can occur due to the impact on dielectric strength, so it is important to keep a certain distance for safety. 3.The hair dryer must be used at the power supply voltage specified on the open plate.

The power cord wears a three-wire power cord. 4. Before using the electric hair dryer, you should try to switch the electric hair dryer from the hot mold to the cold mold, so as to cut off the power supply of the electric heating element first. Reduce the internal temperature of the hair dryer and cut off all power supply.

5. When the electric hair dryer is not in use, it should be placed in a dry place, not in the open air or wet places. When taking it out after long-term non-use, the insulation resistance should be checked first.

Ensure that it can be used normally when it meets the requirements to ensure the personal safety of users. 6. The electric hair dryer should not be used continuously for too long, and should be used intermittently in the gap to avoid overheating and burning of the heating element and motor.

The hair dryer will burn off if it blows all the time. If the electric grip is used continuously for too long, the electric heating elements and motors inside will burn out due to overheating. A hair dryer consists of a set of heating wires and a small fan with high speed, which generates heat when energized.

Therefore, when the hair dryer is in working condition all the time, it will generate too much heat and damage the hair dryer.

Try not to use the hair dryer continuously for too long, and use it intermittently. Do not throw the hair dryer at will, the heating element and the motor will be damaged by mechanical impact, and do not disassemble it casually to avoid damage to the parts.

Before the end of use, try to switch the hair dryer from the "hot" to the "cold" mode first, so as to cut off the power supply of the electric heating element first. It slows down the aging of its internal insulation, prolongs its service life, and is not easy to burn other objects when placed on the table.

Operating environmentBrand model: generalSystem version: General

I've also experienced something like this, the hair dryer blew and stopped talking in the car, and then after a while it got better again, because:

There is a temperature control setting inside the hair dryer that automatically disconnects if the temperature of the hair dryer is too high, which is a safe setting.

An electric hair dryer is about 1000 watts, and if it is used continuously for a long time, the temperature will gradually increase, and to a certain extent, it may cause ** or scalds, which will hurt the user.

Therefore, when you use the hair dryer type, remember not to contact you for a long time.

The best way is to turn it off for a while, and then use it every two or three seconds, and if the hair dryer is used to blow clothes, it should be used intermittently, and the suction outlet of the hair dryer must not be blocked, which will be very dangerous!

1. Whether there is deformation at the switch, whether there are scorch marks and odor probes, if there is, the possibility of the switch being burned out can be considered; Second, check that the vent probe of the hair dryer has an obvious burning smell, and it is not ruled out that the motor windings are burned out. 1. When using the hair dryer, it is necessary to ensure that the air inlet and outlet are unimpeded, otherwise it will not only fail to achieve the use effect, but also cause the appliance to overheat and burn out the appliance, so the hair dryer with attitude belt must pay attention to maintenance during use. The power cord of the hair dryer should be a three-wire system, and the grounding wire should be correct.

In this case, the overheating protection of the hair dryer is working.

When the temperature of the hair dryer reaches a certain value, the hair dryer with safety standard settings will start this protective measure, so that the internal temperature of the hair dryer can be started again when it is reduced to a safe value, so as not to cause safety accidents. This is a normal situation, not a broken or faulty hair dryer.

Heaters and electric heaters in household appliances also have the same settings for the same reason, all for safety.