Kettle repair

The goal of this type of study is to enable the repair of a category of devices based on an example using photos, schematics, explanations, and links to guides, thereby empowering future repairers.

In this dossier, we explain what the device is made of, show the different sub-assemblies, the roles they play, and how they function individually and when assembled together.

We do not show the disassembly or reassembly of the devices because our goal is to study a category of objects. Within the same category, no two devices are alike, whether from one brand to another or even within the same brand. It is therefore impossible to state which tool to use or how to proceed. If you run into difficulty, do not hesitate to search for a disassembly guide online for your specific model; there are many available.

Our goal is to show that you can learn by doing. The advantage is that it allows for "intelligent" progress by understanding "how it works". Once you have understood, you can repeat it as many times as necessary and on other devices.

It is also not a matter of redoing what has already been done. We select existing quality content and supplement it if necessary to aggregate it around a "methodological" axis designed to provide solutions for an autonomous and secure repair process.

Performing a repair is like conducting an investigation. You must look for testimony, ask questions, observe, find clues, analyze evidence, and verify alibis. Then, proceed to the identification and arrest of the suspect :-)

This investigation must be conducted methodically.

It is this method that we invite you to discover.

To begin repairing any device, from the simplest to the most sophisticated, even before taking anything apart, we suggest asking yourself 3 questions. This is the information-gathering phase.

This first phase is as important as the repair itself, in the sense that if the analysis is done correctly, the repair will be that much easier.

The 3 questions to systematically ask yourself, in order, are:

• What are the different functions of the device?
• What is its user manual?
• What is the problem encountered?
  

What are the device's functions?

In the case of simple objects, asking this question may seem useless, but for more complex ones, it is important for understanding the origin of the failure. This helps as much as possible to avoid going down the wrong path.

What is the user manual?

This is the logical follow-up to the first question. Once you have grasped all the device's functions, it is appropriate to understand how to use it. To do this, you can refer to the user manual if available, or ask the owner to explain how it works, if they even know themselves, which is not always the case (!)

What is the problem?

Finally, you can ask the last question regarding the device's malfunction(s).

You must determine if the device is totally or partially broken (hence the importance of the first question), what the symptoms are, if an event caused the failure, and anything else that might help isolate the source of the problem.

During this step, it is necessary to test the object, observe what happens (*1) and confirm the nature of the problem(s) with the user, and verify what works and what does not, to avoid any misunderstanding during subsequent operations.

After gathering this initial information, it is likely that a preliminary Troubleshooting will be possible, which will allow you to move on to the next phase: the execution of the repair.

This phase consists of:

• disassembling the device (*2)
• examining, observing, measuring, and analyzing the behavior of the different elements that constitute it
• doing research if necessary (thanks to the internet)
• identifying the defective element(s), if any
• proceeding with their replacement
• making adjustments
• performing reassembly

At the end of this phase, it is advisable to test the device to verify that it functions correctly.

In the workshop, this must be done with the user to confirm the success (or failure) of the operation.

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

- sight to visualize what is happening

- hearing to listen for any noises produced by the device

- smell to identify, for example, smells of burning

- touch to feel vibrations, heat, cold, etc.

To successfully complete a repair, it is recommended to be in a quiet place with enough space and good lighting.

(*2) IMPORTANT Disassembling devices, especially the most recent ones, is often a long and delicate operation; it is appropriate to ensure you have the necessary time and tools. You must be aware that this can damage the appearance of the device, or even render it unusable in the worst-case scenario. It is recommended to search the internet for disassembly advice by searching for the device's model and brand.

Repairing electrical or electronic devices almost always requires opening them, which necessitates taking certain precautions to avoid the risk of electrocution or other dangers (burns, explosions, fires, etc.).

It is therefore essential to master the basics of electricity and to know and apply the relevant safety rules when opening such a device.
If this is not the case, do not do anything yourself.

If you are not sure of yourself, stick to performing checks while the device is unplugged.

If you take a measurement while the device is powered on, make sure to prepare the measurement while powered off by connecting the multimeter, for example with alligator clips. This allows you to perform the check without having to handle potentially dangerous instruments.