DIY repair blender bosch

A blender is a multifunctional home appliance that is found in almost every kitchen. This is a convenient device that can replace several devices at once. With its help, grind, mix, beat the products. The design of blenders is simple, so they are quite reliable, but even the most reliable technique fails. Consider how to disassemble a submersible and stationary blender, find the cause of the breakdown and do it yourself repairs.

All blenders can be divided into two types - stationary (tabletop) and submersible (hand-held). They differ in design and method of operation, may have different attachments and additional functions. To repair a stationary or hand blender, you need to understand the features of its device.

The hand-held models are long-handled electrical appliances with a cutting attachment. They are lowered into a bowl with products that need to be chopped and mixed, pressed on the start button and held until the procedure is over.

The undoubted advantages of submersible models include compactness. The devices are easy to disassemble for cleaning, plus they need a minimum of space to store them. Blenders with a large number of attachments are versatile and perform a variety of food preparation operations.

There is only one drawback of submersible structures, but it is significant. During cooking, you have to hold the device in your hand while pressing the start button. If you have to do this within 1-2 minutes, the hand gets tired, numb. Such a device is not suitable for frequent use, because does not cope well with mixing large portions of food.

Video (click to play).

Making Soup with a Hand Blender

Stationary models resemble food processors in appearance and often perform many functions. They are bowls with rotating knives attached to the bottom. Such a device is installed on a table, you do not have to hold it with your hands while working. He is able to grind a large portion of food at a time, copes with mixing cocktails, liquid dough.

Desktop models also have drawbacks. The hostess has to allocate quite a lot of storage and installation space. In addition, some stationary blenders do not grind vegetables well: they either grind into crumbs or remain large chunks. The advantages of tabletop structures include the fact that they are sometimes easier to disassemble and repair with your own hands than submersible ones.

Although the principles of operation of submersible and stationary blenders are similar, there are still differences due to the different design of the devices. In all models, products are chopped with knives, but in tabletop appliances, the bowls also serve as an auxiliary function.

The knife of the stationary appliance, located at the bottom of the bowl, rotates and cuts the food. With an increase in speed, the crushed mass is mixed, rises up. The walls of the bowl expand upward, so small pieces slide along the walls, and large pieces fall into the center - to the knives. It turns out that the crosspiece pulls down the pieces of food and throws the already crushed mass to the walls of the bowl.

It is not uncommon for a blender to be considered broken if it does a poor job of chopping. But it happens that the problem is not in breakdowns, but in the low power of the electric motor. Sometimes it is enough to add a little liquid to the bowl to make the work of the knives easier.

If the model is powerful, then such deviations in operation can really indicate malfunctions, for example, a blunt knife, a broken speed switch, etc. In some cases, problems with the bowl may be the cause of poor performance.

Stationary model device

In submersible structures, collector-type electric motors and fuses are usually installed that turn off the device in case of overload. Frequent breakdown - burning of current-carrying parts, therefore, when a malfunction occurs, first of all, the contacts "ring out" by rotating the shaft by hand.

Care must be taken when using handheld devices: they are not suitable for kneading dough and other thick products. The motor may not be able to withstand the load. Repairs will be expensive. However, there is good news: often women's hands get tired of holding the equipment before the engine has time to overheat.

Many models are equipped with gear shifters. This is a very convenient feature that expands the capabilities of the hostess. But if the engine does not cope, then the working device can break out of the hands, which becomes the cause of mechanical failure.

Submersible model device

In submersible models, the power cable is often damaged. This is the flip side of the main advantage of such devices - mobility. The hand blender is often turned on and off, carried from place to place, which leads to kinks in the cord, incl. critical.

Unstable operation of the power grid is also a risk factor. During power surges, motors often burn, printed circuit boards are destroyed. Often it is necessary to replace the knife, repair the attachment, the speed regulator. In table-top appliances, liquid may leak into the nozzle drive, the bowl snap mechanism may break.

Hand blender repair

Consider how to check the performance of individual structural units:

• If the blender does not turn on, the first thing to check is the presence of current in the electrical outlet. Before disassembling the device for repair, you need to make sure that there are no power problems. The outlet is checked using a tester or by connecting to it another electrical appliance, which has an accurately working cord.

• If there is current, but the blender does not turn on, check the power cable and fuse. Repair in this case comes down to replacing defective parts with new ones.

• Overloads can burn the motor. In addition to problems with performance, such a breakdown gives off a burning smell. Sometimes the device can be repaired by replacing the brushes on your own, but more often you have to give the blender to a service center for repair or buy a new one.

• When the elements of the printed circuit board burn out, a short circuit occurs. It is necessary to disassemble the equipment, inspect the board, test and, if necessary, re-solder the faulty elements.

• If the gasket leaks, then it must be replaced with a new one. liquid can get on the electric motor and cause more serious repairs.

Diagnostics of malfunctions of the submersible model

Housewives are often faced with a situation where the blender has stopped and the knife is not spinning. It happens that the knife is spinning, the motor and the speed switch are in good order, but when loading the products, the device works "idle" without grinding them. In many cases, repairs can be done by hand. Let's figure out how to do this.

Stationary blender device diagram

(KMU: make a screenshot of the 1st picture with the name of the parts)

Before disassembling the blender for repair, you should carefully read the technical documentation. Disassembly instructions may be supplied with Bosch, Philips, Scarlett, Polaris models. It is best to follow the manufacturer's recommendations. Otherwise, there is a great risk of permanently breaking the device.

For disassembly and repair, you will need the following tools:

• flat thin screwdriver (if such a screwdriver is not available, it can be replaced with a narrow knife);
• long screwdriver;
• pliers;
• a magnet to reach small parts if you cannot remove them with tools;
• superglue or any other reliable adhesive with which you can restore the integrity of the seams if they are damaged.

DIY blender disassembly procedure:

1. Remove all screws, remembering or noting where they are located.
2. Remove as many items as possible.

Note! Some craftsmen offer a more radical option for disassembly: a narrow screwdriver or knife is pushed between the body and the casing of the device and the weld is knocked down with an accurate hammer blow. This method is only suitable for non-collapsible models, and superglue is required to reassemble them after repair.

1. Parts that could not be removed must be carefully examined. They can be clipped. In this case, they can be removed by pressing the latches.
2. When the case is disassembled, you can start checking the performance of parts and repairing.

The most common models of Scarlett ("Scarlet"), Vitek ("Vitek"), Polaris ("Polaris"), Philips ("Philips"), Bosch ("Bosch") are usually disassembled, so they can be repaired by hand, replaced nozzles. Let's consider in what cases self-repair is possible.

1. Replacing the knife. If the knife is dull, it can only be replaced, because it cannot be sharpened. New knives are sold in specialized and hardware stores. To replace, remove the old part by wrapping a towel around it and unscrewing it. After that, insert a new knife (it may differ in appearance from the old one), secure.

Important! Sometimes you can buy a new knife complete with an oil seal. It makes sense to replace both parts at once. In some stationary models, the knife cannot be removed from the bowl, because it is not collapsible. Then there remains only the option of a complex replacement of the bowl, knife and gland.

Old and new knives

1. Speed ​​regulator. In stationary models, it may be difficult to check the switch, because the function of blocking switching on without a bowl is often provided. By the way, the problem of stopping the operation of the device is also associated with blocking. If you suspect a malfunction of the speed switch, it must be evaporated, each position must be checked in full, and repaired.

1. Stopping work. If the device does not turn on, the first thing to do is check and, if necessary, replace the cord. If it turns on and buzzes, but does not work, then disable the lock. Inoperability when the blocking is released most often indicates a burnout of the electric motor winding. It can be replaced, but this is an expensive repair, so more often than not it is more profitable to just buy a new blender.

Note! The problem might be with the circuit boards. Capacitors and resistors are worth inspecting. If a short circuit occurs, then it is better to give the device to specialists. In many cases, damaged electronics cannot be repaired or the cost is too high.

So that you have to disassemble, check and repair blenders with your own hands as rarely as possible, you should adhere to simple rules of safe operation. Check the reliability of attachments before starting work, do not turn on the device without a bowl, do not overload, handle the wire carefully (make sure that it does not bend or twist). The main thing is to follow the instructions for use. These simple measures are quite enough for the equipment to serve for many years without repairs.

Rack structures on the ceiling are used to decorate various premises, both residential and public. The kitchen is no exception. The popularity of this material.

Someone becomes an adherent of this style at first sight, someone is annoyed by its excessive cloying and "mimicry", but completely indifferent shabby.

The financial costs of arranging a kitchen and a bathroom often account for the lion's share of the cost of repairing an entire apartment or private house. No wonder, after all.

Trying to fix a broken blender yourself Bosch makes sense if its free warranty repairs have expired... And only if you yourself are at least a little versed in electronics and electrical engineering, know how to use a tester and a soldering iron. But first you need to disassemble it without breaking it completely. So how do you do this?

There are two types of blenders: hand-held (submersible) and stationary (tabletop). To disassemble the desktop version, you may need a wrench or screwdriver, depending on the type of mountings for the bottom case cover. In this case, everything is simple: screws or nuts are unscrewed, and the cover is removed, revealing access to the internal device.

With immersion blenders, the situation is more complicated, since their external fasteners are often fragile plastic latches, the location of which is not known in advance, and the internal assemblies can be additionally fastened with screws, self-tapping screws or bolts.

The hand blender consists of 3 main elements: an electric motor, a spindle and a control unit (board). Its repair is reduced to replacing the defective part and removing contamination. Let's take a look at how to disassemble the Bosch MSM 7700 model.

To do this, we need a small flat screwdriver with a wide, thin tip or a penknife with a narrow blade. And also a small hex key 3-4 mm. If such a key is not available on the farm, you can try using a Phillips or flathead screwdriver of a suitable size instead.

Although it is not difficult to disassemble a Bosch hand blender, you should not do this without the necessary knowledge and skills.

As a workout, let's start with the simplest thing - removing a small panel from the handle of the device. It is quite easy to pry it off with a screwdriver and snap it off. Under it we will see two self-tapping screws, which must be carefully unscrewed with a hex wrench.

With the back cover of the case, everything is a little more complicated and you need to be extremely careful not to break anything. It is not necessary to apply much force here, but it is important to first understand what exactly holds the cover in engagement with the body, and in which direction it moves.

Having coped with this task, we will find two more screws inside, which also need to be unscrewed in order to continue further disassembly. Taking a closer look at the edges, we will notice that the two halves of the case hold a few more latches, which can be easily snapped off with a flat screwdriver and finally gain access to the electric motor and control board of the hand blender.