Details: bosch wff 1200 do-it-yourself repair from a real master for the site my.housecope.com.
Hey BOSCH experts!
Washing machine BOSCH WFF-1200
S/n 7603 50091
On the washing machine (front, full-size) the command device does not rotate. I checked all the peripherals - everything is normal. The commander is hybrid, the stepper mechanical part was checked by plugging the motor into a socket, and the terminals with a multimeter for “ringing” - everything is also normal. There is a suspicion that voltage is not being supplied to the processor, but maybe the processor also does not reach the relay for controlling the motor and motor of the command officer.
The problem is that there are a lot of planars on the board, and it’s impossible to stupidly track where the voltage disappears.
Who knows at what points (legs) and how much voltage should be on the working command?
The data is like this:
K / device AKO 513011 306 3737 AA2 076 (hybrid)
Sticker 3995970 B007778AB5
AKO board 15621 02 S 1
Processor AKO 451279
BSHG_MH1_V1.10
OF80B
HLFQ9603
At the same time: who knows where to get a circuit for such a machine, and even better for a module. Maybe for money.
If you turn the commander by hand, he does everything: fills, drains, heats up. These functions are controlled by the mechanical part of the commander. And the motor (main), and the motor of the command apparatus, are controlled by the processor. These functions, respectively, do not perform.
There are five zener diodes (or diodes), all planar.
three electrolytes. There is some voltage on them, from 2.7V to 9.8V constant.
The question is, where is the voltage supplied to the processor, and what?
[quote=”@lex”]Check the power on the processor itself, the generation of quartz.
There is nothing like quartz there. Please tell me how it looks or is indicated.
 |
Video (click to play). |
I'll try the electrolyte today.
Edison, if you were an electronics specialist, then you would not have created this topic here, since there is nothing complicated there and a circuit is not needed. Although in this case success is not guaranteed, since the processor could also die. But since it’s difficult for you and you can’t figure it out without a diagram, then you won’t figure it out with the circuit either, especially since the command switch is simply designated on the diagram as a black box that includes wires. Therefore, there is only one solution for you and forget about other options - order a new commander.
Masters, somebody help. The Bosch WFF 1200 washing machine does not drain. My wife promised to lynch me if I did not deal with the problem on my own. I took apart the washing machine, cleaned everything from scale, but it still does not drain the water. WHAT TO DO.
Scale does not affect the drain, look into the pump filter.
2 Grizel And check the drain hose, if the filter and hose are clean, then check the pump. Has the car been working for 5-6 years already?
Dmitry_840 wrote:
2 Grizel And check the drain hose, if the filter and hose are clean, then check the pump. Has the car been working for 5-6 years already?
IMHO, judging by the alphanumeric model number, she is 10 years old, if not more.
PS. The programmer is probably mechanical. IMHO, it is reasonable to start with him.
what does it mean it doesn’t drain - the pump is spinning? - it seems that the shield is removed from the front and then access to the pump is provided, find the plugged hose - pull out the plug and drain the water into a basin, then unscrew the large plug from the pump and remove the filter.
In short, does the mop spin?
There was a similar problem. The pump kept spinning. It was decided by replacing the appropriately sized pump nozzles from Ariston for about 700-800 rubles. The pump from Bosch was rejected because of the zhlobsky policy of the Fritz (engineer call 2500 rubles + the price of the pump, which they won’t sell you without a call).
pricolist wrote:
There was a similar problem. The pump kept spinning. It was decided by replacing the appropriately sized pump nozzles from Ariston for about 700-800 rubles. The pump from Bosch was rejected because of the zhlobsky policy of the Fritz (engineer call 2500 rubles + the price of the pump, which they won’t sell you without a call).
I was in s / c Bosch. Everything is for sale. What is not in stock - to order.
before buying - you need to decide if it does not receive power, or the hose or the filter itself is clogged
Maybe the Fritz changed their minds. I had this situation 4 years ago. The native pump worked for about 5 years.
Quost wrote:
I was in s / c Bosch. Everything is for sale.What is not in stock - to order.
Prices are normal, and with included “cost of repair and departure” ?
BV wrote:
Prices are normal, and with included “cost of repair and departure” ?
Bosch prices 
Help me please
Zunussi car is 2-3 years old.
Doesn't drain water. The pump is spinning and the filter is clean. Tubes are clean
Maybe under load there is not enough power or something.
Quost wrote:
I was in s / c Bosch. Everything is for sale. What is not in stock - to order.
Ravil wrote:
Doesn't drain water. The pump is spinning and the filter is clean. Tubes are clean
Maybe under load there is not enough power or something.
The pump is a tricky mechanism. If you are sure that the drain system (in the car and pipes to the riser) is clean, there are no blockages, then change the pump, it's in it.
I also bought parts there in January. And their prices are cheaper than in stores for the same goods (an impeller for a rec. pump costs 500 rubles, and for ZIP M, PartList from 800 rubles).
What, they stopped selling it now?
2VVP I tried for a long time.
So I'm just asking, how are things now?
VVP wrote:
The pump is a tricky mechanism
It turned out yes.
I repaired this pump, fortunately: they are not sold in our city, you need to go to Ufa.
Initial data: the pump rotates normally without load. Removed and in place without water. But at some point I noticed that it does not rotate. Spin it - it spins. After that, you immediately put it on the drain - it drains, but in the rinse mode it does not drain.
First I cleaned all the hoses.
Then I disassembled the pump. Pulled the rotor towards the impeller. With a screwdriver, probably 15-20 kilograms of force must be applied. Pulled out with bushings. I did not remove the impeller from the axle. The impeller rotates 180 degrees, probably this is done to reliably start the engine under load. THIS IS NOT A FAULT! That's the way it should be. Synchronous motors are difficult to start. So they come up with all sorts of tricks to facilitate launch. I scrolled this 180 gr a dozen times so that the rotation was free. After that, the pump began to work, for 2 weeks already, pah-pah without failures.
Most likely, dirt and scale interfered with turning 180 degrees. impeller.
So: 1. The impeller must rotate freely 180 degrees in the rotor axis.
- The rotor, due to the built-in magnet, must have a clearly defined one (maybe 2) stable position. If you hit the impeller with your finger, after stopping it should vibrate near a stable position (at first I didn’t notice any different resistance around the circumference at all, apparently the axis was very clogged)
Bosch washing machines, namely the wff 1200/1201 series, are unique not only because they are produced by a company known for its excellent quality. It was these machines that managed to be sales leaders for many years, despite the fact that many manufacturers tried to launch more versatile units on the market.
But Bosch engineers continue to develop models of this popular trend, and very successfully. An excellent solution for this period was the change in the design of the back cover, the electric motor was improved, thanks to a successful solution, it became more convenient to use the handle to select the washing mode.
But despite the ease of use, fans of the wff 1200 and 1201 series still express dissatisfaction due to the fact that the functionality of the machines is a bit weak. This is especially felt if someone used a newer generation of machines.
– only up to 5 kg of laundry can be placed in the washing tub;
– 13 programs have been invested. Today it is considered that this is a small amount;
- there are no various electronic devices inherent in more modern washing machines that facilitate the washing process;
- there is no self-diagnosis process in emergency cases, but automatic shutdown works clearly if an emergency condition occurs.
Merciless time
What an ideal quality a washing machine would not have, but its constant use leads to the fact that parts begin to wear out gradually, systems function worse and worse. But you don't have to part with your favorite household appliances.
In the event of a breakdown repair bosch washing machines should be entrusted to the specialists of our company. Knowing thoroughly the entire design, schemes, the most common breakdowns, professional craftsmen will be able to return the washing machine back to working condition.
In order to gain experience with washing machines of the wff 1200 and 1201 series, the masters underwent special training, first theoretically, and then in practice they were able to put their knowledge into practice, and gained skills in repairing machines, and this is the most important factor when a professional is really needed.
To carry out repair of washing machines boschwff 1201, special training is required as this series is one of the latest releases available with an electromechanical control module. Since 2002, the company has not returned to them since 2002.
Specific model failures
To the special specificity that is required when conducting bosch washing machine repair wff 1200 or 1201, refers to the performance of work on the electric motor. To replace the motor brushes, you do not need such a long procedure as disassembling the entire assembly to remove the motor from the tank.
The handle designed to select the washing program often breaks if you turn it counterclockwise. It must be admitted that this design is the weak point of this excellent technique. But the control unit is distinguished in this model by reliability and fails quite rarely.
Masters are often called due to any breakdown of the drain pump or, if required repair of washing machines bosch wff 1201, due to heating element failure.
Common washing machine troubles
The repairs that are required for these household appliances are for the most part the same as in other washing machines. Problematic ones include:
- the machine does not turn on at all or the drum does not rotate;
- there is no filling of the tank with water or there was no drain;
- water remains cold at a given mode;
- no spin when the program is installed;
But don't make repair washing machines wff 1200 their hands, because without having the proper skills and not knowing its specific features, the likelihood increases that it will be much more difficult for the called master to repair the car.
Many customers already know that repair washing machines Bosch wff 1200 is the prerogative of a specialized company. Calling the wizard is very simple, you need to contact the dispatcher by phone or use our website.
It is advisable to explain, if possible, during the order, what happened to household appliances. There are certain official error codes to washing machines wff 1200. They were compiled so that it would be possible for the unit to conduct self-diagnosis, and for the master to determine which particular node failed. The system issues an error code, and the master decrypts it and proceeds to repair, having previously prepared those spare parts that will need to be supplied instead of the used ones.
For example, F 01 will tell you that the door does not fit snugly, and therefore the machine will not be able to function.
Error F 02 will tell you that no water is coming in, which may mean that the filter in the hose is hopelessly clogged.
If the client notifies the company dispatcher that an error number "3" has occurred, then the water is not draining, and repair washing machines Bosch wff 1200 on the home you will need to check whether the pipes or hoses for draining the water are heavily clogged, how the pump works and the electronics that control the drain system are in order.
Fully repair washing machines Bosch wff 1200 price depends on the extent of the damage, which parts were replaced. There are prices for each type of work, and the client discusses all questions with the master so that there are no misunderstandings during the calculation.
Contacting our company, customers are convinced that as much as it costs to repair washing machines bosch wff 1201, it is quite acceptable to pay for any family at a price, and in return, the washing machine will again work efficiently and reliably.
Replacing damaged bearings and seals in a Bosch washing machine. A variant of disassembly and assembly of the drum is shown.
https://my.housecope.com/wp-content/uploads/ext/3149/zamena-podshipnika-v-stiralnoj-mashin/ - How to replace bearings in a washing machine. https://my.housecope.com/wp-content/uploads/ext/3149 - Repair in Moscow.
A detailed video of replacing bearings in a Siemens washing machine (a complete analogue of Bosch). Likewise in the second half.
Bosch washing machine does not heat water, does not switch washing modes. Troubleshooting and repair.
the machine worked for 15 years, the programmer began to act up before that, they changed the ten and carbon brushes on the engine.
https://my.housecope.com/wp-content/uploads/ext/3149 - repair of washing machines and dishwashers in Moscow.
Programmer Command Apparatus Control module for washing machine. Disassembly 1 part.
disassemble the tank of the Bosch washing machine replacement of the Bosch bearing.
Buy a new or repair an old washing machine. Bosch repair. repair in Chisinau t 069032339.
A new video is a video guide for self-repair of a BOSCH washing machine. In this.
The device of the command device of washing machines (programmer). Briefly about the operation of the washing machine controller.
Programmer Washing machine Disassembly + Assembly part 2.
The machine during washing and squeezing clothes suddenly starts to make strange sounds (rumble, rattle.
Do-it-yourself replacement of a heating element in a washing machine.
Replacing bearings in a Bosch Siemens washing machine. Repair of washing machines in Krasnodar Already.
Gentlemen from samsung, make better equipment.
Master class on replacing motor brushes on a Bosch or Siemens washing machine. With this video you will be able to samos.
I finally got hold of a front-loading washing machine that can be completely disassembled. As.
We repair CMA Bosch Classixx 5 WLF 16261 OE - no spin. Watch my videos by topic: Unboxing: .
Bosch washing machine pump replacement Bosch washing machine pump replacement Do-it-yourself pump replacement Repair.
Brief and understandable instructions for replacing the heating element in a BOSH washing machine with your own hands and without special tools.
In this video, I will show you how to replace shock absorbers in Bosch and Siemens washing machines, in which shock absorbers are removed.
The washing machine rattles when spinning. One of the reasons is the loose fastenings of the counterweight of the drum.
Bosch washing machine repair at home. Replacing the heater with a simple tool.
Repair of the electronic module (board) of the Bosch washing machine. St. Petersburg +7(921) 945-77-56. Site:
A step-by-step video about disassembling a Bosch washing machine and replacing a heating element.
installation of a heating element on a Bosch washing machine.
REPAIR OF THE WASHING MACHINE SAMSUNG REPLACEMENT OF BEARINGS For the development of the channel My Web Money Wallet: $ Z437711481490.
HELP THE PROJECT - transfer to Sberbank online at +79052121354. Purpose of payment - a gift Thank you! How to remove.
Replacing the heating element in the Bosch WFC 2067 OE washing machine The Bosch WFC2067 OE washing machine washes longer than it should and does not heat up.
Replacing the motor brushes of the washing machine BOSCH Maxx 4,5,6,7 Do-it-yourself washing machine repair, GOST Master-Se.
BOSCH washing machine repair. We are repairing the machine, the water drain does not work.
bosch shock absorber replacement bosch shock absorber repair.
+7(499)704 4510; Call now! "Service Center "Your Master"" carries out urgent repairs.
Bosch washing machine repair. Do-it-yourself replacement of a heating element in a washing machine.
To read the instructions, select the file in the list that you want to download, click on the “Download” button and you will be redirected to a page where you will need to enter the code from the image. If the answer is correct, a button for receiving the file will appear in place of the picture.
If there is a “View” button in the field with the file, this means that you can view the instruction online, without having to download it to your computer.
If the material is not complete in your opinion or you need additional information on this device, such as a driver, additional files, such as firmware or firmware, then you can ask the moderators and members of our community who will try to respond promptly to your question.
You can also view instructions on your Android device
How to fix minor problems yourself, Faults, possible causes / solutions – Bosch WFF 1200 User Manual
Attention! The text in this document has been automatically recognized. To view the original page, you can use the “Original” mode.
otayach-t Tpt604iHiiiM corresponding to the current regulations for
baaopasmoy exploitation of the apactropriboa. Pat>o Pradohraiitap and the apartment worked on ayyuyochenma.
There are no narrations and sagas.
– The shutter is plugged in ■ socket, or plugged in completely
- In the programs for the BaliDdaatniy Ball, the largest
delay at the start - andormapnoa yaapania.
When turning off the electric mast or the machine's guard
You can, there on Ianaa. drain the aodu and take out the balia
(See handout 'Cleaning the pump', page 25).
– the water pipe is open edge.
Is the filter clogged and the water supply system
(See handing out .Futtra number *. p. 26).
If you are a procoitropiroapi:
– set the washing program again.
-> yoyushaa sradstao to fall asleep and yuoeatu.
- turn on the program.
In the event that the ace breaks down snoaa, the breakdown is necessary
eliminate with the help of saraisa service.
Button D1raaaarital wash* is not pressed.
How to fix minor problems yourself
How to fix minor problems yourself
Water for posgupaat
and the car, stralmoa
happy to wash off
KZ kuaats, laraklyuchatal
ParachoAnt programs
momantalmo in conacioa
please.
Water when washing a balla on
aidma
The washing machine is too damp or lumpy.
– Parade by loading laundry detergent a kuaatu
dry it (See .Cleaning* handout on page 23).
o Use devices for dispensing liquid and
kompmtmk washing stradsta. Load detergents
happy special dispensers and akpadyv^ta them
nalosradstaaiiio a drum.
• The cup holder is in the position for liquid
detergent. Paremastita astaaku a looojaia
for powder detergents (see page 11).
Nothing wrong! 8 processes
eidna through the loading hatch window.
Results of ETNRCM
naudoalatvorntalim
On the balla akdny leftovers
mortal remedy
Wash Ambassador Valve
acquired a gray tint
Out of the blue
aystupaat paia
The contamination of the bapy was higher than usual.
- deceive the amount and type of detergent.
– Select the maximum allowable for dv
Select the most powerful program stmry4.
It doesn't mean bad propopaskiania. it's about the
dissolving residues of otdapna species of bass phosphate
laundry detergents that are deposited on the ball
Remedy; dry and clean or again
to slow down the poooskamiya process. Use another style
real happiness.
When I get dirty! laundry with fat, oils or ointment
normal dosage of washing detergent for asagda
effectmac. At the next wash, increase the dose
washing powder.
Sgusob arrangements; aybarita maximum tammarature.
possible for this type of laundry.
These stains could be left behind by cosmetics or
ogyulaskiaatala and partly appear uzha parade
washing process.
Remedy: ambassador zama’zhaa>am and water with liquid
try washing detergent (wash.
Too much washing machine was loaded
happy. By pressing the .ON/OFF* key, stop
program for about 5-10 minutes. To upholster the pan,
mix a heaping spoonful of opopashkiaatal with ‘/g pcgra
aod and add a otdapania for washing sradsta.
With a falling wash, the dosage of the detergent
proaod * aa more precisely.
panoooooaaa. Ego. in principle, influences
Nuyugo scary! At some phases of the engine
washing machine is possible.
Njugo arashnogo! A little noise may start
Programmers of bases of Pradaaritapnoy washing.
Nothing wrong! Noise during the acceleration process
This model was produced from 1995 to 1998. This model was replaced by a washing machine Bosch WFF 1201, which has minor differences in the design of the control panel and minor design differences, it was produced until the end of 2000.
Other models of the family Bosch WFF (For example Bosch WFF 1400, with a spin speed increased to 1200 rpm) are extremely rare.
- dimensions 59x58x85cm
- top cover can be removed for installation under a worktop
- height without cover 82 cm
- weight 81kg
- capacity 5kg dry laundry
- spin speed - 1000 rpm
- hatch opening - handle on the hatch, from left to right
- sunroof blocking device - thermal relay
- maximum opening angle - 120 degrees number of programs 13
number of programs 13-
- additional settings - temperature, prewash, water hold, extra rinse, spin reduction
- heater power 2 kW (in the first modifications - 2.5 kW)
- washing time 70-140 min.
- water consumption 40-70l
- Drain pump filter - yes, bottom left
- Emergency drain pipe - yes.
- Very reliable. Easy to repair - removable front panel, stainless steel tank with a removable front wall that allows the removal of the drum, easily replaceable bearings.
- Easy access to all major components - everything except the heater and bearings is accessible through the front panel. A single power module of electro-mechanical type.
- Disadvantages - no quick wash program.
- Typical malfunctions are the heater, pump, bearings, malfunctions of the power module due to oxidation of the contacts.
- In some versions of the control board, an emergency termination of the wash is provided when problems are detected (no filling with water in 3 minutes, no motor rotation, breakage of the temperature sensor). Often, the failure of the washing program is mistaken for a malfunction of the command device.
We have all possible spare parts for Bosch WFF 1200/ WFF1201 /1400 and we can repair these washing machines for any breakdowns.
We are also ready to purchase from you faulty washing machines of the family Bosch WFF
Replacing damaged bearings and seals in a Bosch washing machine. A variant of disassembly and assembly of the drum is shown.
https://my.housecope.com/wp-content/uploads/ext/3149/zamena-podshipnika-v-stiralnoj-mashin/ - How to replace bearings in a washing machine. https://my.housecope.com/wp-content/uploads/ext/3149 - Repair in Moscow.
https://my.housecope.com/wp-content/uploads/ext/3149 - repair of washing machines and dishwashers in Moscow.
A detailed video of replacing bearings in a Siemens washing machine (a complete analogue of Bosch). Likewise in the second half.
Bosch washing machine does not heat water, does not switch washing modes. Troubleshooting and repair.
disassemble the tank of the Bosch washing machine replacement of the Bosch bearing.
Programmer Command Apparatus Control module for washing machine. Disassembly 1 part.
the machine worked for 15 years, the programmer began to act up before that, they changed the ten and carbon brushes on the engine.
Master class on replacing motor brushes on a Bosch or Siemens washing machine. With this video you will be able to samos.
A new video is a video guide for self-repair of a BOSCH washing machine. In this.
The device of the command device of washing machines (programmer). Briefly about the operation of the washing machine controller.
Brief and understandable instructions for replacing the heating element in a BOSH washing machine with your own hands and without special tools.
The machine during washing and squeezing clothes suddenly starts to make strange sounds (rumble, rattle.
In this video, I will show you how to replace shock absorbers in Bosch and Siemens washing machines, in which shock absorbers are removed.
Do-it-yourself replacement of a heating element in a washing machine.
The Bosch WFF washing machine is a legendary series of machines, many of which have by now managed to serve their owners for 20 years. Simple and reliable, they still cope with laundry by 5 points. These models can no longer be found in the retail network, but they are still found on the secondary market. Repair masters recommend buying them, as the quality of the machines of the famous Bosch Wff series is the highest.
Appearance of the Bosch WFF 1201 machine
On the Russian market, the series is represented by only a few models. 1200, 1201 and 1401 have survived to this day. Their characteristics are somewhat different even within the same model. Now this is impossible.Bosch almost every year updates the line of washing machines. Units do not stay on the market for a long time. The slightest difference, improvement, refinement, leads to the emergence of a new model, and not a modification, as it was before. As a result, the user often cannot understand how one model differs from another. With Bosch Wff it was different. They appeared at a time when manufacturers wrote in the instructions "model specifications are subject to change without notice."
Models WFF 1200 and 1201 were produced in 1997-2002. They turned out to be the brand's last units with electromechanical control. During all 5 years of production, the developers were engaged in improvement. Changes were made to the design of the motor, control panels, etc. One of the goals was to improve maintainability. And it succeeded. Maintenance of the series machines is inexpensive for users. And even now, after 15-20 years from the date of issue, WFF machines are successfully repaired if necessary.
- For medium soiled white cotton. Temperature - 90 °. Loading - maximum.
- For colored cotton and other fabrics. Permissible temperature - 30-60 °. In this mode, you can also load a full tank.
- A quick program for lightly soiled things. True, by modern standards, the cycle is quite long. Therefore, it would be correct to say that the machine does not have a short program. But there is a mode that lasts more than an hour for things that do not require thorough cleaning. Suitable for synthetic fabrics, as the temperature of water heating does not exceed 30-40 °.
- Let's do it.
- For unpretentious, not too dirty laundry. Temperature - 0-60 °.
- Economical washing of non-whimsical linen at temperatures up to 40°. In this mode, energy consumption is reduced due to weaker heating of water and a decrease in the duration of the program. You can clean up to 2 kg in this mode.
- Reduced program for lightly soiled laundry up to 30°C.
This model does not have a very short program that allows you to wash sports T-shirts or refresh only purchased items. The shortest mode lasts a little over an hour.
Despite the unanimous positive opinion of users about the machines of the series, they still have disadvantages. Especially when compared with modern assistants.
Having served for two decades, the WFF 1200 continues to please the owners. There are few reviews on the network, since at the time of the appearance of the machines of the series, most users did not have access to the Internet, but they are all with a plus sign. Someone's car continues to serve without a single breakdown. Someone managed to carry out inexpensive maintenance by replacing small parts. There are no complaints about the inability to repair the car.
Repairmen also speak positively about these machines. It is their quality that is usually cited as an example when they say that the old German assembly is much better than today's Russian one. Partly it is. The cars of those years really have a great resource. But their capabilities are still lower than those of modern assistants. They do not have complex electronics, the repair of which is very expensive. They have a lot less plastic parts. Manufacturers put in them a larger resource, since in those days the equipment did not become obsolete so quickly.
Machines of the WFF series are not only less likely to break down. These units are easy to repair. For example, many modern Bosch models have a non-separable drum. As a result, bearing failure costs the user half the cost of the entire machine. Repairing the WFF is relatively simple and not burdensome for the wallet.
Modern models are produced taking into account rapid obsolescence. It makes no sense to put a huge resource into equipment if after 5-7, maximum 10, years it will no longer meet modern requirements, for example, in terms of energy consumption.
You can't call it very quiet. When spinning, the Bosch WFF washing machine is relatively loud. Not enough to spoil the relationship between the owners of the machine and their neighbors, but still, in this indicator, it is inferior to later Bosch models.
As mentioned above, the Bosch WFF washing machine has a control panel in German. Therefore, despite the many advantages and the low price of these used machines, it’s still not worth buying her grandmother to the country. Even with instructions, an elderly person whose memory leaves much to be desired will constantly get confused in buttons and programs.
The Bosch WFF series machine washes well. This is not surprising, given that the minimum wash cycle lasts more than an hour. And the bulk of user complaints about the quality of washing is caused by the use of accelerated modes with a large load of dirty things. Those. when used inappropriately. However, machines of not any brand cope with washing soiled clothes even with a long wash. Bosch is at its best here.
As you can see, the Bosch WFF washing machine is not inferior to inexpensive modern models in most parameters. And even has an advantage over many. Of course, over 20 years of service, the plastic part of the machines turned yellow, and the cars no longer look smart. But for work they are still relevant.
The washing machine itself is a complex mechanical device with an equally complex electronic control unit. Household appliances from Bosch are known for their reliability and quality, but, like any device, they can also fail.This may be due to both a violation of the rules of operation, and in connection with the natural degradation of parts and elements of the machine.
In order to be able to perform professional repair of washing machines with your own hands, you need not only to understand the principle of operation of the device, but also to have a variety of tools, have knowledge in electronics, and be able to read electrical circuits. But to carry out a simple repair under the power of everyone. The main thing is to accurately determine the faulty node, this is helped by the self-diagnosis function built into the washing machine.
Regardless of the brand of the washing machine, the device of models from various manufacturers, whether it be Atlant or Bosch, practically does not differ. The main nodes include:
- frame;
- drum;
- pump;
- Control block;
- heating element (TEN);
- engine.
frame;After turning on the machine and selecting the program, the pump starts pumping water into the drum through the fill valve. The drum is a container made of stainless material, with many holes over the entire surface. Through these holes, water penetrates into the tank, reaching the desired level. The pressure switch monitors the water level. The drum is connected through a belt drive or directly connected to the engine. According to the selected program, the engine starts its work, causing the drum to rotate. In front, the drum is connected through a rubber cuff to the tank.
At the end of the wash cycle, the water will begin to drain. The main unit of the drain system is the drain pump. A special hose is connected to the pump outlet, through which water is drained from the device. The last step in the operation of the machine is the spin. For its implementation, the engine starts to rotate the drum at high speed. Under the action of centrifugal force, things inside are pressed against the surface of the drum. Water is squeezed out of things and exits through the holes in the drum. The squeezed out water accumulates at the bottom of the tank, from where it is pumped out by a pump. The pump and motor are controlled by the electronics unit.
Water heating in the device occurs with the help of a thermoelectric element. It looks like a bent tube, inside which there is a conductive thread in the middle of the insulator layer.
In addition to the main components, sensors are important elements in washing units. They allow electronics to control the processes that take place during washing. The following sensors are used in the machines:
- Pressure switch. It can be performed both mechanically and electronically. Its job is to control the water level.
- Thermostat. It is located at the bottom of the tank and is designed to monitor the temperature of the water.
- Tachometer. Measures engine speed.
- Hatch blocking device. It is an electromechanical device. Informs about the opening of the hatch and blocks it when washing starts.
Pressure switch. It can be performed both mechanically and electronically. Its job is to control the water level.
