DIY Philips blender gearbox repair

In detail: do-it-yourself Philips blender gearbox repair from a real master for the site my.housecope.com.

Various food processors are used to prepare various first courses, as well as special foods for children. But due to frequent use, they break down quickly. Repair of the blender Brown (Braun), Turbo (Turbo), Philips (Philips), Bosch (Bosch MSM) and others is not difficult, all work is easily done by hand.

This device is very simple in structure. In principle, a blender consists of an electric motor, a nozzle and a bowl (only for a stationary one). Devices are of two types:

Manual, submersible (Bimatek BL, Kenwood, Krups, Orion);
Stationary (Moulinex, Panasonic, Gorenje, Zelmer).

The manual ones are a motor with a handle, to which a nozzle is attached. The key difference between the hand blender and the stationary hand blender is how it works. Food is poured into the bowl of the stationary, which is crushed by the knives located at its bottom. The manual one is immersed in a container (most often in a special glass) and cuts food at any level.

Photo - hand blender

The main types of equipment malfunctions:

The device does not rotate. This is a knives speed switch problem;
The household appliance does not grind or does not work well. With a mixer and blender, the power of work plays a very important role. If an insufficiently powerful or high-quality type is selected, then the work efficiency will be low;
The device does not turn on. Perhaps there is something stuck inside the shredder or the engine burned out from very intense work. Also, in some cases, this is affected by a decrease in voltage in the electrical network;
Modes do not switch. This is most likely a drive or control problem;
The knife broke. Most common problem. These blender parts are sold in almost any brand store (Vitek, Redmond RHB, Scarlett - Scarlet, etc.), they cannot be repaired, so they are replaced.

Video (click to play).

Photo - stationary blender

Video: how to fix a blender

Before you repair the device, you need to disassemble it. It should be noted right away that the disassembly of the Brown, Saturn, Bork and Vitek hand blender is impossible. Their construction is molded plastic. A plastic ring is soldered into the base, which cannot be removed. Therefore, there are only 2 options for solving the problem if the device is broken:

Buy a new one immediately. Unfortunately, not every service center will provide warranty repairs for such blenders;
Unsolder the panel. To connect the body, plastic soldering technology is used, therefore, disassembly can be carried out using high-temperature technologies. You need to carefully cut the case and insert several metal plates or needles into the cut. They need to be heated and the molten plastic removed. After repair, the plastic can be glued.

The body contains the working part of the blender - the motor, the spindle, the control unit (a circuit that helps to set the modes, etc.). After disassembly, you can replace the required part with a working one or clean the device contacts.

A little more complicated is the case with disassembling a stationary blender. It consists of a specially shaped bowl (often cylindrical or trapezoidal), a knife, an electric motor, a shaft and a spindle. When the device is connected to the network, the shaft with the spindle transmits the torque to the knife, which moves and cuts the food in the bowl. To prevent the ground food from falling out through the extended top, the bowl is closed with a lid.The rotation of the knife can be carried out for a certain number of times (some models of the company Moulinex, Polaris and Redmond have a built-in timer in the system) or until the contacts open.

Photo - disassembly of the hospital

To disassemble such a blender at home, you will need a screwdriver or wrench, depending on the type of mounts. The housing cover is supported by screws or nuts, mainly with a left-hand thread. They are removed, the body is removed. Underneath is the motor, shaft and spindle. The first step is to inspect the shaft; there should be no jags or obvious irregularities on it. Further, if necessary, you can change the knife:

If the knife is dull, then it will not work to sharpen it - but you can buy it in the company store. Depending on the brand, it costs from 2 dollars to 10. To remove the old cutter, you need to unscrew it from the spindle;
Sometimes the knife is mounted not on the thread, but on the nuts. Then they are unscrewed, and the blade itself is carefully removed from the socket;
An oil seal is located at the junction of the knife and the drive - this is a seal that improves the adhesion of the parts and increases the torque. It must be replaced every six months (if the model is collapsible);
In some blenders Tefal (Tefal), Bork, Scarlet SL-1548 and Cameron, the knife and container are solid, so if any part breaks, you will need to replace both parts.

If the knife is turning too slowly, the speed selector may not be working. The control board is responsible for its work. To inspect it, you need to disassemble the device according to the instructions above and test all the contacts. They should be closed. In this case, be sure to check the power and lock button.

Photo - knives

It should be noted that the operation of the drive is impossible without a tight fit of the bowl to the junction. This safety technique protects you from accidental injury. If the board and the lock button are normal, then you need to test the contacts of the bowl - they may come off. Sometimes, when doing kitchen work, food residues get on the active parts of the device - look at them and, if necessary, wipe them with special substances for cleaning and degreasing.

Photo - hand model construction

In the event of a gearbox malfunction, the blender most often simply does not turn on; such repairs are very difficult to carry out on your own. Instructions on how to replace the engine:

It is necessary to disassemble the device according to the scheme described above. Be sure to read the manufacturer's recommendations and the technical specifications of the device. In non-separable models, such repair is not advisable due to its high cost;
Check the power and lock button - there may be a problem with it. If a buzzing sound is heard when you turn on the blender, then you need to squeeze the contacts and test them with a multimeter. In some cases, they simply cannot close when turned on;
Engines can be bought separately in special stores, but such spare parts are sold separately only for expensive models or for food processors (Kenwood HBM, Polaris PHB, Gastrorag, DEX DHB);
The new engine is installed in place of the broken one, the system is assembled and tested.

Often the reason for the non-working condition of the blender is a broken power cord. To check it, you need to disconnect the device from the network and ring the wire. The cable is soldered to the power head inside the case, you need to check its voltage with a multimeter when connected to the network - if there is a signal, then the cord is working. Otherwise, the cable is replaced. The same can be done with a fuse - it is tested and, if necessary, replaced with a new one.

The device of a hand (submersible) blender is no more complicated than some toy with a motor, with which every boy had fun in his childhood, and probably dismantled it. So difficulties with how to disassemble such a simple device as a blender, it would seem, should not arise, even if it is the popular Philips.

But the problem is that many "serious" manufacturers of home appliances do not want you to poke around in their creations on your own and try to fix something there. They deliberately try to make it difficult to access the internal parts of their products. And some even go so far as to make it indestructible - such devices cannot be disassembled without breaking something in the process.

In order to disassemble and diagnose almost any hand blender, we need a "standard gentleman's set" of the master:

Flat and Phillips screwdrivers.
Penknife or office knife.
Electrical tester.

Consider disassembly using the example of a fairly common model of a hand blender Philips HR 1372, which is protected by the manufacturer from disassembly and repair at home (common causes of breakdown are described in the article: why the blender may not work). Philips hand blenders of this type can be disassembled from the side of the attachment attachment. In this part of the body are located two plastic latches, rigidly connected to the round "ears" of the removable part.

It is impossible to pry them off with your fingers, so we use two small screwdrivers and a penknife with a thin blade for this. With one screwdriver, you need to lift the edge of the latch, and with the other, slightly move the "eyelet" towards the release. We will do the same on the other side, after which it will be possible to easily remove the front black plug from the attachment side of the nozzle.

Under it we will see another white plastic cap, which is no longer attached with latches, but with glue! To get it, we will have to use a penknife, or better a clerical knife with a very thin blade, which needs to cut off the glue, passing the blade along the edges of the plug adjacent to the body.

After removing this plug, we will see an electric motor with a spindle. But we will not be able to get it right away, since something else is holding it from behind. At the back of the Philips Hand Blender is a metal decorative cap that only holds onto double-sided tape. It can be easily pry off with a small screwdriver and removed. Under the cover we will see two custom screws at the power wires that hold the motor and prevent it from being pulled out from the other side.

These screws have unusual caps with two notches along the edges for a special wrench. Neither a regular nor a Phillips screwdriver fits them, but with some skill they can still be unscrewed with an ordinary screwdriver or scissors, if they are not very tightly twisted. Having unscrewed the rear screws, we can easily get the electric motor along with the control circuit from the body of our Philips hand blender and see what this design is.

The insides of the blender are: electric motor and control circuit with buttons, which is fixed on a round plastic frame. In order to diagnose and repair them, you need to disconnect all wires and free the electrical circuit from the plastic frame. After that, using a tester, you can check the serviceability of the electric motor and the elements of the electrical control circuit.

Defective electrical elements on the diagram can almost always be replaced with similar in characteristics, and the circuit itself can be cleaned of contamination, which can also cause malfunction or interruptions in the operation of the hand blender.

If an electric motor burns out, it can only be sent to a landfill, since it is almost impossible to fix it at home. The electric motor can also be replaced, but only as a whole and for exactly the same size and electrical characteristics.

If, on the contrary, the motor is in good working order, and the control circuit could not be repaired, then it can be left for "spare parts" to be used elsewhere.

As you can see, it is not difficult to disassemble the "indestructible" Philips hand blender, although the manufacturer made this task somewhat difficult by placing some plugs on the glue and making the screw heads non-standard. Also, nothing prevents you from trying to repair the blender on your own if you have at least some idea of \ u200b \ u200bthe device of electrical appliances.Much worse is the case with sealed devicesthat cannot be repaired even at service centers. For some equipment manufacturers it is simply beneficial that their products are not repaired by "handicraft" methods, and individual original units and parts are replaced only as a whole, assembled. Although in this case, the breakdown of the device may be the burning of one tiny fuse, which does not cost anything to replace. Instead, people are forced to throw the "broken" device in the trash and go buy a new one. The hand blender can also be assembled by hand.The blender made us put food processors, mixers and other appliances in the back cabinet. But, as is typical for household appliances, the blender can fail. Fortunately, in some cases, breakdowns are not so terrible, and you can repair the blender yourself. How exactly, I'll tell you now.
Before proceeding directly to troubleshooting, it is important to know the very internal structure and the principle of operation of the unit.The blender itself is a motor of a certain power, hidden in the body of the handle, which we hold by pressing the button and adjusting the speed (manual). Also, the motor can be placed in a stand case (stationary).

A special attachment with a knife (whisk, crush, etc.) is put on the motor shaft, which rotates the knife or rotates itself when the button is pressed. Image - DIY Phillips blender gearbox repair

Something like this looks like a stationary device for grinding products.

The general purpose of both types of devices is the same, but in the event of a breakdown, their own characteristics and subtleties of repair appear.

Submersible model with replaceable tips

Sometimes for a blender breakage, poor operation of the knife, slipping during grinding, or the presence of large pieces in the ground mass is taken. This is not a breakdown, but a common problem with low-power models, which, due to the limitation of motor power, cannot cope with solid food. If the unit previously coped with harder fractions, then it is worth examining it for malfunctions.

The general device of the stationary blender:

bowl with a knife;
motor shaft;
bowl latching mechanism;
electric motor;
switch and speed controller;
power cord.

The instructions in the table contain a description and solutions to the most common malfunctions of a stationary blender:

Problem: The bowl of a stationary unit may leak where it is connected to the body.

Solution: bowl repair is a simple replacement of the gasket.

Unfortunately, the part cannot be repaired and you will either have to find a replacement one (which is not always possible), or buy a new device.

The device of a portable blender is somewhat different: the simplest models are very compact and consist of:

handles with an electric motor;
speed switch and power button;
legs (elongated attachment with a "skirt" and a knife);
power cord.

The set can be supplemented with a grinder bowl, attachments for whipping liquid products, making mashed potatoes, etc.

One way or another, for the submersible blender to work properly, it is often necessary to eliminate the following problems:

The cord is a "weak point" of portable models, since there is a much higher probability of damaging it with an accidental sharp movement, passing it with a heavy object, etc.

disassemble the handle with the motor;
we check the condition of the incoming contacts, evaluate the internal elements for breakage;
we connect a new serviceable cord to the contacts and check the functionality.

If the blender does not work, but emits characteristic buzzing sounds or does not switch speeds, then perhaps it is the regulator that is the problem:

disassemble the case;
with the help of a multimeter we "ring" the part;
we solder the part if the problem was detected and each position was adjusted;
pay attention to the regulator contacts - they must be closed.

Do-it-yourself blender repair in most cases means disassembling the case. Most branded models provide for this, but there are also non-separable models. In the latter case, it is worthwhile to disconnect the housing elements with extreme caution, and use adhesives when reassembling.

The malfunctions from the table below are typical for any type of blender:

The knife in the attachment or chopper bowl may be less effective at grinding, tearing, or seizing pieces during use. Repair of the grinder in this case consists in replacing it, since the knife cannot be sharpened.

How to disassemble the blender chopper:

press the axis of the knife with your finger;
pull it up in a rotating motion.

In most bowls, the knives are removable, and if not, then the problem will be solved only by replacing the bowl.

If the knife is blunt in the leg of the hand blender, how do I repair the attachment? In this case, you can either purchase a new one, or disassemble the attachment, replacing only one knife.

If the unit stops working, the problem is probably in the fuse:

disassemble the case;
remove the fuse;
we replace it with a new one (the price of a new part is very small).

If the blender does not spin, although it buzzes and clearly shows signs of life, then this may be a malfunction in the engine winding.

It is not recommended to repair it yourself. Try to get a new engine, otherwise you will have to go to the store for a new blender.

When, it would seem, it was possible to determine the malfunction, change the part, but it turned out that the next time it was turned on to the network, the device did not turn on again, then this is probably a short circuit.

In this case, you cannot fix the problem on your own. Such damage cannot be repaired.

We examined the most common blender breakdowns and how you can fix them without contacting a service center. I hope that a detailed description of the problem and its solution will help you cope with the repair yourself.The video in this article provides visual instructions for fixing blender breakdowns. Have questions? Ask them in the comments!The blender is a motor with a special attachment on the shaft. This is a fairly simple device. To start working, a bowl with a knife is attached to the motor shaft. This makes it possible to disable the engine blocking. After the blender, you can work in a pulse or normal mode by pressing the power button. The household appliance is completed with a speed controller, cord, plug. The kit may also include a fuse.Are you sure you can handle a DIY blender fix? In this article, we will show you how to disassemble a blender and how to become a near-professional blender repair master. Like most devices, the blender is easy enough to disassemble, the main thing is that there are no unnecessary parts left during assembly.Today there are three types of blenders available:

Stationary

Submersible

As an option in a food processor.

In all kinds of blenders, the main component is an electric motor. But the principles of operation of a household appliance are somewhat different. Stationary blenders are almost identical in performance to food processors. They consist of two main components: an electric motor and a cookware with a knife placed inside it.Let's look at the device and how the blender works. Food is placed in the blender bowl. The device turns on and its knife starts to rotate very quickly. The shape of the knife is designed to make the products move in a closed path. The knife of the device is located at the bottom of the bowl and mates with the rotor of the engine. High speed and the right shape allow you to quickly chop the food.The blender blade is shaped like a propeller. This allows him to draw in products for cutting, and at the same time throw the already chopped mass onto the walls of the bowl.The blender bowl has a special shape that allows the movement of the processed products in a circle. The walls expand towards the top. In this regard, the resulting mass begins to fill the walls, freeing the center of the mold for not yet cut products. As soon as the number of processed products on the wall reaches a critical weight, they fall back onto the knife and further chopping takes place. In practice, all this happens in a matter of moments.

We have described the process that can be observed with quality equipment. Cheaper models may not cope with the task at hand. Lack of power does not allow creating a continuous flow of processed products and the knife begins to cut the air. If you decide to chop the cabbage, add a little water. This will help the knives handle this vegetable. Image - DIY Phillips blender gearbox repair

If the blender does not cope with chopping food, this does not mean that it is broken, it may simply not have enough power. Then add some liquid and try starting the blender again. If this does not help, then perhaps you should do the repair yourself:

sharpen or replace the knife;
test the speed switch;
make sure the engine is working properly;
check how the bowl connects to the knife.

If you decide to repair the blender with your own hands without involving professionals, then you should start by checking the speed regulator. It's simple. It is necessary to press successively different speeds and determine by ear whether the speed of the rotor is changing. If the speed changes, then the regulator is working, and it is worth checking the blender knife.

Unfortunately, not everyone can sharpen such a knife at home. Therefore, it is not worth experimenting; it is better to purchase a new cutting tool for the blender. In the store, you may encounter the following development of events:

You have purchased a new blender knife. In this case, it is necessary to remove the old one and put a new knife in its place. You can disassemble the blender with your own hands, for this we disconnect the blender from the network, remove the bowl from it. We take a clean towel so as not to hurt ourselves on the sharp edge and begin to unscrew the knife from the motor spindle. The threaded connection here is not standard, but left, so we unscrew it in the opposite direction. Sometimes the knife is connected with nuts. In this case, wrenches and pliers will come to your aid.
There are models in which you need to disassemble the blender bowl to replace the knife. This is not a problem, but do not forget to replace the oil seal with a new one here.
And finally, the most inconvenient option is when the bowl cannot be disassembled. In this case, you will have to purchase the entire block: a bowl and a knife.

Failure of the speed regulator of a hand blender is one of the most common occurrences. If so, then the blender is in danger of being disassembled. It is possible to fully check the performance of this unit only in a workshop where there is the necessary equipment. If you have the necessary knowledge in electrical engineering, then you can independently "ring" this part. You will be able to determine if the problem is here. The regulator is dispensed from the blender and is tested in all positions. For normal operation, in each position the regulator contacts are normally closed.

But before disassembling a household appliance, it is worth listening to whether the speed of rotation of the knife changes when switching speeds.

It should be remembered that in most models, the blender cannot be turned on if the bowl is not connected to it. This option is classic, because since the invention of the blender, its creator has emphasized that the equipment will not turn on if the bowl is not installed.You decided to grind the minced meat, and the blender simply does not turn on! Don't panic right away! This trouble can be solved even easier than if the device worked, but did everything badly.First, let's click on the button and listen. Is there a quiet hum? It means that the engine is running, but it cannot turn the knife. Disconnect the bowl and use your fingers or a small screwdriver to squeeze the button that blocks the inclusion of the blender. If everything starts working, then the defect has been identified.If the device does not start even when the blocking is off, then the matter is in the engine, more precisely, in its windings. One or two of them burned down. In this case, the engine must be replaced. If you can manage to buy it at a reasonable price, then you are in luck. But most often its cost is comparable to the cost of a new, not expensive device, therefore it is not economically justified to repair such a blender. Easier to buy a new one! Image - DIY Phillips blender gearbox repair

If, when the button is pressed, you do not hear the operation of the engine, in order to make repairs, it is necessary to examine the power supply circuit:

If you decide to fix the blender yourself, here's the work order. If the device fails during the warranty period, the service center must repair it free of charge. It is better not to disassemble expensive blender models and try to repair it yourself, but you need to contact a specialized workshop. Today, the cost of an expensive blender can be considered 3000-3500 rubles.

I have a BRAUN blender, but a large bowl does not grind - summer has come, cocktails are in vogue. Since I am a system administrator of the Fast-service company - repair of household appliances. HA - SHAS ALL ZROBLE

A seemingly ordinary cover with external and internal couplings. But in fact, there is a real gearbox between the couplings. What a miracle! )

The forums said that it is not repairable for a reason non-separable... But I did not give up.Taking a Soviet watch screwdriver and pushing it through the side hole (there are 2 of them), I forged the upper hook that directly connects to the blender motor

Light force and clutch removed

The lower sleeve was firmly seated, so I did not lean, because I was afraid to ruin the entire structure, and it was night. Plus, I thought that the gearbox was removed from the top, which I was partially right about.

I decided to show it to our master. With a slight flick of a screwdriver, he slid the lower sleeve off. I did not have time to take a photo, therefore, without her.

Taking a copper tube approximately 1cm in diameter, our master knocked out the entire gearbox. As I expected, it is removed from the top, but it was glued somewhere by 10-15% along the contour, therefore it came out very easily.