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	[title\|Hair Dryer]

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	[summary]Repair guides and troubleshooting information for hair dryers.[/summary]
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-	[page_title\|Hair Dryer Repair]

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Repair guides and troubleshooting information for hair dryers.

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== Background and Identification ==

Hair dryers are self-care appliances designed to dry hair. Hair dryers achieve this by blowing hot air out of a nozzle that the user can move around their head and point at specific areas that need to be dried.

The hair dryer was first invented in 1890 by Alexander Godefroy. Godefroy invented this device for use in his hair salon. It was a non-portable, over head installation that dried users’ hair when they sat beneath it. The portable, handheld hair dryer evolved from this invention. However, handheld hair dryers didn’t enter the consumer market until around 1920.

Hair dryers are often made of electric heating coils and a fan. These electric heating coils are either made of PTC (positive temperature coefficient) ceramic or wire. Hair dryers with ceramic heating elements are more common because they heat up faster than wire components. Hair dryers include a power cord, which supplies electricity to the heating coils. These coils then heat up the air, which is blown out of the hair dryer by the fan.

Hair dryers today are either permanent over-head dryers, which are commonly installed in hair salons, or portable, handheld appliances. They are manufactured by numerous companies, including Revlon, Dyson, Remington, Conair, and more.

== ***Follow us and investigate....*** ==

=== Presentation ===

This type of study aims to enable future repairers to repair ***autonomously*** a category of appliance using an example in the form of photos, diagrams, explanations, and repair guides.

In this page, we explain what the device is made of, show the different components, the roles they play, how they work individually, and how they work together.

We do not only show the disassembly or reassembly of the devices, since we aim to study a category of objects. Within the same category, no two devices are alike, either from one brand to another or within the same brand. So it's impossible to say which tool to use and how to go about it. If you're having trouble, you'll have to search iFixit and the Internet for the right tool for the right model.

We aim to show that you can learn by doing. The advantage is that you can progress "smartly" by understanding "***how it works***". Once you've got the hang of it, you can do it again and again, and on other machines.

Nor is it a question of redoing what has already been done. We select the quality content that already exists, add to it if necessary, and aggregate it around a "methodological" axis designed to provide solutions in an autonomous and secure repair approach.

=== Repair methodology ===

Carrying out a repair is like conducting an investigation. You have to gather evidence, ask questions, observe, find clues, analyze evidence, and verify alibis. Then it's on to identifying and catching the suspect :-)

This investigation must be carried out methodically.

This is the method we'd like you to discover. To start repairing any appliance, from the simplest to the most sophisticated, before even dismantling anything, we suggest you ask yourself 3 questions. This is the information-gathering phase.

=== Information-gathering phase ===

This first phase is just as important as the repair itself because if the analysis has been carried out correctly, the repair will be that much easier.

The 3 questions to ask systematically are, in order:

* What are the different functions of the device?
* What are its user instructions?
* What is the problem?

[quote]***What are the device's functions?***[/quote]

In the case of simple objects, it may seem pointless to ask this question, but for more complex ones, it's important to understand the origin of the failure. In this way, you can avoid going down the wrong path as much as possible.

[quote]***What are the user instructions?***[/quote]

This is the logical follow-up to the first question. When you've grasped all the functions of the device, you need to understand how to use it. To do this, you can refer to the user manual, if available.

[quote]***What's the problem?***[/quote]

The last question to ask is what's wrong with the device?

We need to determine whether the device is totally or partially out of order (hence the importance of the first question), what the symptoms are, whether an event has led to the failure, and anything else that can help us pinpoint the origin of the problem.

During this phase, it is necessary to test the object, ***observe what happens (*1)*** and confirm the nature of the problem(s), checking what works and what doesn't, to avoid any misunderstandings in further operations.

Once this initial information has been gathered, it's likely that an initial diagnosis can be established, enabling the next phase, the repair itself, to be carried out.

=== Repair execution phase ===

This phase consists of:

* dismantling the unit ***(*2)***
* examining, observing, measuring and analyzing the behavior of the various components that make it up
* documenting, if necessary (thanks to the Internet)
* identify the defective component(s), if any
* replace them
* make adjustments
* reassemble

At the end of this phase, it's time to test the unit to make sure it's working properly.

In the workshop, this should be done with the user, and the success (or otherwise) of the operation confirmed.

***(*1) Repairing is an exercise in observation that calls on (almost) all our senses.***

* ***sight, to visualize what's going on***
* ***hearing, to listen for any noises produced by the device***
* ***the sense of smell to identify burnt odors, for example***
* ***touch, to feel vibrations, heat, cold, etc.***

For a successful repair, it's best to be in a quiet place, with plenty of space and good lighting.

***(*2) IMPORTANT*** The dismantling of equipment, especially the latest models, is often a long and delicate operation, so make sure you have the necessary time and tools. Be aware that this may damage the appearance of the device, or even render it unusable in the worst case. It's a good idea to search iFixit and the Internet for dismantling tips, based on the model and make of the appliance.

=== Safety ===

Repairing electrical or electronic devices almost always involves opening them up, so you need to take certain precautions to avoid the risk of ***electrocution or other hazards*** (burns, explosion, fire, etc.).

You should be ***familiar*** with the basics of electricity, and know and apply the relevant safety rules when opening a device of this type.

If you don’t feel comfortable, just carry out the checks with the ***power off***.

If you're taking a live measurement, make sure you prepare for the measurement when the power is off, by plugging in the multimeter with grip-wires, for example. This allows you to carry out the check without having to handle potentially dangerous instruments.

== Additional Information ==

* [[Hairdryer Troubleshooting|Hairdryer Troubleshooting]]
* [link|https://en.wikipedia.org/wiki/Hair_dryer|Hair Dryer (Wikipedia)]
* [link|https://www.amazon.com/s?k=hair+dryer&ref=nb_sb_noss_2|Hair Dryers on Amazon]

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Je bijdragen zijn gelicentieerd onder de open source Creative Commons-licentie.

-	[summary_image\|~~248977~~]
+	[summary_image\|3336999]

	[title\|Hair Dryer]

+	[page_title\|Hair Dryer Repair]
+
	[summary]Repair guides and troubleshooting information for hair dryers.[/summary]
-
-	[page_title\|Hair Dryer Repair]

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