An electric hairdryer is the most important accessory in a woman’s life. In many respects, thanks to this device, a woman is always attractive and desirable for a man. A hairdryer can not only dry your hair, but also make a beautiful styling that emphasizes the natural beauty of a woman. A hairdryer is also the first item in the hands of a makeup artist in a beauty salon. It is almost impossible to imagine the life of a modern woman without a hairdryer. But, like any other device, it is prone to breakdowns. How to determine the malfunction, how to disassemble the hair dryer and repair, if possible, will be discussed in this article.
General device hairdryers
Due to its wide distribution, regardless of the manufacturer, most hair dryers have a similar design. The main elements are the heating element and electric fan. The heating element is an ordinary spiral, which is made of alloys with high electrical resistance. Due to this, the spiral can heat up to high temperatures and not burn. In electric hair dryers, a nichrome wire is used as a heating element. Even with a very high resistance, the spiral will certainly burn if it does not have cooling.
The hair dryers have air cooling, that is, the heating element is cooled by a strong stream of air. The strength of the flow is calculated in such a way as to prevent the burnout of the spiral. The main element in the cooling unit is an electric motor. The power can be different and varies from the class of the hairdryer and from its manufacturer. The higher the hairdryer class, the greater its power. High-power engines put on a Rowenta hair dryer. How to disassemble it, we will explain below. Engines for hair dryers are produced in low voltage design. The supply voltage, as a rule, does not exceed 12 volts. This is necessary to ensure the compactness of hair dryers and their safe operation. To reduce the voltage to the required, a lowering spiral is included in the circuit, which is built into the heating element. In addition, the hair dryer has a power button, which can also be a power regulator.
Tools for repair
Regardless of the manufacturer or the hairdryer class, the home foreman will need the following tools and supplies:
- screwdriver;
- pliers;
- soldering iron;
- tweezers;
- glue;
- solder paste or flux;
- tin;
- pieces of wire of various sections;
- multimeter.
Hair dryer disassembly
As a rule, hairdryer cases are made of plastic, which are fastened with self-tapping screws. You need to unscrew them with a curly screwdriver. Next, you need to push the halves of the body, release the latches out of engagement. The latches are very fragile and it is important to be careful not to break them. Especially if you want to make out the Rowenta hair dryer. How to do it right? The main thing is to unscrew all the screws. It happens that in hairdryers, depending on their design, hidden screws are used. They may be located under the stickers or logos of the manufacturer. If you do not unscrew them, then with further disassembly, you have every chance of breaking the latches.
There is another feature if you do not know how to disassemble the hair dryer brush - such devices consist of several parts and have a rotating head. When disassembling such a device, you need to carefully remember in which order and how the parts are attached to each other. This is very important and necessary for the subsequent proper assembly of the hairdryer.
Troubleshooting
We learned how to make out a hair dryer. Now you need to find and fix the problem so that it can be used for a long time. If the hair dryer does not want to turn on at all, then the first thing to do is to check the integrity of the electric cord and plug. The serviceability of the plug will help determine the visual inspection. If during inspection traces of burning or fusion are visible, then such a plug must be replaced. Often the electric plug and cord are one, then the entire cord needs to be replaced.
To protect the hair dryer from overheating, a thermal switch and a thermal fuse are used. The first is contact plates, which, when a certain temperature is reached, open and break the circuit. The thermal fuse also protects the hair dryer from overheating. In case of severe overheating, the fuse blows and opens the circuit. Also, a malfunctioning engine may include a malfunction. Often this can happen with the Philips hairdryer. How to disassemble it is written above.
Hair Dryer Repair
If a cord malfunction is detected, it must be replaced. The integrity of the cord can be checked with a multimeter. Turn on your multimeter to measure resistance, take turns measure the resistance of the cord cores. A healthy core will show zero, and a burnt endless resistance.
A thermal fuse is an integral element. It is short-circuited; upon reaching a critical temperature it simply burns out. This can also be checked with a multimeter, if such a defect is present, then the fuse must be replaced. In this case, you will need a soldering iron and a new fuse.
A malfunction can also be found in the thermal switch. A bimetallic plate is the basis of this device, due to the high temperature it can lose its properties and stop working. Then such a switch must also be replaced, since it will not be possible to restore it.
Another reason for repair may be the burnout of the heating element. This most often happens with a Scarlet hairdryer (how to disassemble and repair it can be found in the article). Burnout of a spiral can occur for two reasons: protection failure and a long service life. In this case, you need to replace the spiral, after restoring the protection. The idle engine must be replaced.
Prevention
To avoid unnecessary expenses for repairs, it is advisable to carry out preventive maintenance of the device. To do this, you also need to disassemble the hair dryer. How to do prevention? First of all, this is a visual inspection. Inspect the hair dryer that you use for external damage: the integrity of the cord, plugs, possible melting on the body. If such damage exists, the hair dryer needs repair or replacement. Important! Do not use a damaged hairdryer; this may result in personal injury or fire.
From time to time you need to clean the hair dryer. In the process, the hair dryer clogs with dust and cut hair. To clean it, the back cover with a protective mesh is removed. Through the opening you can get to the heating element. Using a soft brush, gently brush the dirt and hair off the net, and also clean the spiral. So you have learned how to disassemble a hair dryer in order to repair it. To summarize.
Conclusion
An electric hairdryer is a fairly simple household appliance. But, like all devices powered by a 220 volt network, it needs constant care and prevention. You have learned how to disassemble a hair dryer for drying and styling hair. But, there are also technical hair dryers that are used in construction. As a rule, they are very powerful, they are used for soldering, tinning, removing paint coatings, gluing plastics and much more. Despite the great power and other areas of application, such hair dryers are similar in design, their disassembly and repair are similar to hair dryers.