Details: bosch wff 1200 DIY repair from a real master for the site my.housecope.com.
Hey, BOSCH specialists! Washing machine BOSCH WFF-1200 S / n 7603 50091 The washing machine (front, full-size) does not rotate the command device. I checked all the periphery - everything is normal. The commander is hybrid, the stepping mechanical part was checked by plugging the motor into the socket, and the terminals with a multimeter for "ringing" - everything is also normal. There is a suspicion that voltage is not supplied to the processor, but maybe the processor also does not reach the commander's motor and motor control relay. The problem is that there are a lot of planars on the board, and it is stupid to track where the voltage disappears is impossible. Who knows on what points (legs) and how much tension should be on the working commander?
The data is as follows: To / device AKO 513011 306 3737 AA2 076 (hybrid) Sticker 3995970 В007778АВ5 AKO card 15621 02 S 1 AKO 451279 processor BSHG_MH1_V1.10 OF80B HLFQ9603
At the same time: who knows where to get a circuit for such a machine, or even better for a module. It is possible for the money.
If you turn the commander with your hand, he does everything: fills in, drains, heats up. These functions are controlled by the mechanical part of the commander. And the motor (main) and the motor of the controller are controlled by the processor. Accordingly, it does not perform these functions.
There are five zener diodes (or diodes), all planar. There are three electrolytes. They have some kind of voltage, from 2.7V to 9.8V DC.
The question is, where is the voltage supplied to the processor, and what?
[quote = ”@ lex”] Check the power supply on the processor itself, quartz generation.
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.
Edisson, 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, as the processor could die. But since it's difficult for you and you can't figure it out without a circuit, then you can't figure it out with the circuit either, especially since the commander in the diagram is simply designated as a black box into which the wires enter. Therefore, there is only one solution for you and forget about other options - order a new commander.
Masters, help someone. The Bosch WFF 1200 washing machine does not drain the water. My wife promised to lynch me if I could not cope with the problem on my own. I disassembled the washing machine, cleaned everything of scale, but it still does not drain the water. WHAT TO DO.
Scale does not affect the drain, look into the pump filter.
2Grizel And check the drain hose, if the filter and hose are clean, then look at the pump. Has the machine been working for 5-6 years already?
Dmitriy_840 wrote: 2Grizel And check the drain hose, if the filter and hose are clean, then look at the pump. Has the machine been working for 5-6 years already?
IMHO, judging by the alphanumeric model number, she is 10 years old, if not more.
Shl. The programmer is probably mechanical. IMHO, it is reasonable to start with it.
what does it mean it does not drain - the pump is spinning? - there seems to be a shield removed from the front and then access to the pump is provided, find a plugged hose - pull out the plug and drain the water into a basin, then unscrew the large plug from the pump and take out the filter. Does the mop spin in short?
There was a similar problem. The pump was spinning with all this. It was decided by replacing the pump pipes of a suitable size from Ariston for about 700-800 rubles. The pump from Bosch was rejected because of the redneck policy of the Fritzes (the call of the engineer is 2500 rubles + the price of the pump, which will not be sold to you without a call).
Pricolist wrote: There was a similar problem. The pump was spinning with all this. It was decided by replacing the pump pipes of a suitable size from Ariston for about 700-800 rubles. The pump from Bosch was rejected because of the redneck policy of the Fritzes (the call to the engineer is 2500 rubles + the price of the pump, which will not be sold to you without a call).
I was in the s / c Bosch. Absolutely everything is on sale. What is out of stock - to order.
before buying - you need to decide whether power does not come to it, or the hose or the filter itself is clogged
Maybe the Fritzes have changed their minds. I had this situation 4 years ago. The native pump worked for about 5 years.
Kvost wrote: I was in the s / c Bosch. Absolutely everything is on sale.What is out of stock - to order.
Are the prices normal, and with the “cost of repair and departure” included?
BV wrote: Are the prices normal, and with the “cost of repair and departure” included?
Boshevsky prices
But they did not impose any services.
Help me please Zunussi car 2-3 years old. Does not drain water. The pump rotates, the filter has been cleaned. The tubes are clean, blown out Maybe under load there is not enough power or something.
Kvost wrote: I was in the s / c Bosch. Absolutely everything is on sale. What is out of stock - to order.
Ravil wrote: Does not drain water. The pump rotates, the filter has been cleaned. The tubes are clean, blown out 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 (the impeller for the rec. Pump costs 500 rubles, and for spare parts M, PartList from 800 rubles). Have they stopped selling now?
2VVP I've tried for a long time. That's just asking, how are you doing now?
VVP wrote: The pump is a tricky mechanism
It turned out yes. I repaired this pump, fortunately: they are not for sale in our city, you need to go to Ufa. Initial data: the pump rotates normally without load. Filmed and in place without water. But at some point he noticed that it did not rotate. Spin it up - it rotates. After that, you immediately put it on the drain - it drains, but does not drain in the rinse mode. First, I cleaned all the hoses. Then he took apart the pump. He pulled out the rotor towards the impeller. With a screwdriver, the force must probably be 15-20 kilograms. It is pulled out together with the sleeves. 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! It should be so. Synchronous motors are difficult to start. So they come up with all sorts of tricks to facilitate the launch. I scrolled these 180 grams 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 g. impeller. So: 1. the impeller should turn freely 180 degrees in the rotor axis.
The rotor, due to the built-in magnet, must have a clearly expressed 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 did not have noticeable different resistance around the circumference at all, apparently the axle was heavily clogged)
Washing machines from Bosch, 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 the sales leaders for many years, despite the fact that many manufacturers tried to launch more versatile units on the market.
But the engineers of the company "Bosch" continue to develop models of this popular direction, and very successfully. An excellent solution during 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 with the fact that the functionality of the machines is a little weak. This is especially true if someone has used machines of a newer generation.
- the washing tub can only hold up to 5 kg of laundry;
- 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 the automatic shutdown works clearly if an emergency condition has occurred.
Merciless time
What ideal quality the washing machine would not have, but its constant use leads to the fact that parts begin to wear out gradually, the systems function worse and worse. But you won't have to part with your favorite household appliances.
In the event of a breakdown repairwashing machines bosch wff should be entrusted to the specialists of our company. Knowing thoroughly the entire structure, diagrams, the most common breakdowns, professional craftsmen will be able to return the washing machine back to working condition.
In order to gain experience with the wff 1200 and 1201 series washing machines, the masters underwent special training, first theoretical, and then they were able to put their knowledge into practice, and acquired skills in machine repair, and this is the most important factor when a professional is really needed.
To carry out repair of boschwff 1201 washing machines, special training is required, since this series belongs to the latest editions that have an electromechanical control module available. The company has not returned to them since 2002.
Specific model breakdowns
To the special specifics that are required when conducting repair of bosch washing machineswff 1200 or 1201, applies to work on the electric motor. Replacing the engine brushes does not require such a lengthy procedure as disassembling a complete unit to remove the engine from the tank.
The knob for selecting the wash program often breaks if turned counterclockwise. It must be admitted that this design is the weak point of this excellent technique. But the control unit differs in this model in reliability and fails quite rarely.
The technicians are often called due to any breakdown of the drain pump or, if required repair of bosch wff 1201 washing machines, due to heating element failure.
Common troubles of washing machines
The repair work required for this household appliance is, in most cases, the same as for other washing machines. The problematic ones include:
- the machine did not turn on at all or the drum does not rotate;
- there is no filling of the tank with water or the drain has not occurred;
- water at a given mode remains cold;
- no spin with the set program;
But not worth producing repairwashingmachineswff1200by theirhands, because not possessing the proper skills and not knowing its specific features, the likelihood increases that it will be much more difficult for a summoned master to repair a car.
Many clients already know that repairwashingmachinesboschwff1200 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 at the time of ordering, what happened to the household appliances. There are certain officially accepted error codes towashingcarswff1200. They were compiled so that it was possible for the unit to carry out self-diagnostics, and for the master to determine which unit was out of order. The system issues an error code, and the master deciphers it and proceeds to repair, having previously prepared those parts that will need to be delivered instead of 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, and this may mean that the filter in the hose is hopelessly clogged.
If the client notifies the company dispatcher that an error has occurred under the number "3", it means that the water is not drained, and repairwashingmachinesboschwff1200on thehome will require you to check if the pipes or hoses for draining the water are heavily clogged, how the pump works and the electronics that controls the drain system are in order.
Fully repairwashingmachinesboschwff1200price depends on the extent of the breakdown, which parts were replaced. There are prices for each type of work, and the client discusses all the questions with the foreman, so that during the calculation there are no misunderstandings.
Contacting our company, customers are convinced that it is quite acceptable for any family to pay for the repair of bosch wff 1201 washing machines as much as it costs, and in return the washing machine will work efficiently and reliably again.
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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 the page where you will need to enter the code from the picture. If the answer is correct, a button will appear in place of the picture to receive the file.
If there is a “View” button in the file field, it means that you can view the instruction online without having to download it to your computer.
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You can also view the instructions on your Android device.
How to rectify minor malfunctions yourself, Malfunctions possible causes / remedy - Operating instructions Bosch WFF 1200
Attention! The text in this document was automatically recognized. You can use the Original mode to view the original page.
otayach-t Tpt604iHiiiM of the corresponding prescriptions for
Baaaaaaaaaaaaaaye exploitation of apaktropriboroa. Pat> o Pradohraiitap and the apartment worked on ayyuyochenma.
There are no sagas available.
- The shtakar is plugged into the ■ socket, or plugged in completely
- In the programs for the balogo dad, there is a large
charge at the start - normal yapania.
When unplugging and elaktrkmasta or a citizen of the machine You can, there on ianah. drain the water and drain the bala
(see distribution. Cleaning the pump ', page 25).
- pi tap is open edge.
Is the filter clogged up and the aoda supply system
(see distributor. Number of feet *. page 26).
If you are an ace procoitropiroaapi:
- set the washing program again. -> You are happy to fall asleep while you are. - turn on the program.
In the event that the ace breaks down, a breakdown is necessary.
eliminate with Sarais service.
Claisha D1 full wash * is pressed.
How to fix minor problems yourself
How to fix minor problems yourself
Water for posguupaat and the car, stmralmoa happy to be lost KZ kyuaty, laraklyuchatal parahoAnt programs mantalmo in conachioa welcome.
Water when washing the bali on aidma
The detergent is too damp or lumpy.
- Parade loading washing sradsta a kyuaatu
dry it (see handout Cleaning * on page 23).
o Use devices for dispensing liquid and
kommtmk washing passsta. Load detergents sradstm and special dispensers and accessories nalosradstaiaio a drum.
• Vstaaka a kyuaata is in the liquid position
detergent. Paremastita astaaku a loooojaia
for powdered detergents (see page 11).
Nothing wrong! 8 prosp. Sp "rki water at aoagda Eidna through the opening of the loading hatch.
ETNRM results naudoalatvorntalim
On bala akdny leftovers stmralmogo means
Valve ambassador of washing acquired gray tint
From sradiaai aystupaat paia
The contamination of the bapya turned out to be higher than usual.
- the amount and type of detergent is deceived. - Select the maximum allowable for the door
Choose a more flexible program in Stmru4.
This doesn’t mean bad propaganda. we are talking about
the decaying remains of adaptive species of basphosphate
laundry detergents that are deposited in the bala
Elimination method; dry and clean or again to initiate the poooskamiya process. Use a different style real joyfulness.
When I get dirty! linen with grease, oils or ointment normal dosage of washing machine sradsta on asagda effectmac. At the next wash, change the dose. washing powder. Sgusob arrangement; Aybarita maximum tamlaratura. Possible for this type of laundry.
These stains could be left behind by the cosmetics ambassador or ogulaskiaatala and partially appear the snake parade the washing process.
Remedy: ambassador zama'zhaa> ama water with liquid detergent try u (wash.
Too much part of the washing machine has been loaded.
sradstaa. Pressing the ON / OFF * key stops program for about 5 minutes. To upholster the pan, mix a stop spoon of opopaskiaatal with ‘/ g pcgra aody and add a response to the washing machine sradsta. When washing falls off, the dosage of washing sradsta proaod * aa more precisely.
panoobrazooaia. Ego. in principle, does not influence
New terrible! In some phases of engine operation
washing machine is possible.
Nzhyugo arashny! A little noise is possible at the beginning programmers of bases for standard washing.
Nothing wrong! Noise while accelerating
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 structural differences, it was produced until the end of 2000.
Other family models Bosch WFF (For example Bosch WFF 1400, with the spin speed increased to 1200 rpm) are extremely rare.
dimensions 59x58x85cm
the top cover can be removed for installation under a worktop
height without cover 82 cm
weight 81kg
capacity 5kg dry linen
spin speed - 1000 rpm
opening the hatch - with the handle on the hatch, from left to right
sunroof locking device - thermal relay
maximum opening angle - 120 degrees number of programs 13
additional adjustments - temperature, pre-wash, stop with water, additional rinse, decrease in spin speed
heater power 2 kW (in the first modifications - 2.5 kW)
washing duration 70-140 min.
water consumption 40-70l
Drain pump filter - yes, bottom left
Emergency water drain - yes.
Very reliable. Easy to repair - removable front panel, stainless steel tank with a removable front wall that allows the drum to be removed, easily replaceable bearings.
Easy access to all major assemblies - everything except the heater and bearings is accessible through the front panel. Single power module of electro-mechanical type.
Disadvantages - there is no quick wash program.
Typical faults are heater, pump, bearings, power module malfunctions due to oxidation of contacts.
In some versions of the control board, an emergency termination of the wash is provided upon detection of malfunctions (no filling with water for 3 minutes, no motor rotation, breakage of the temperature sensor). An abnormal end of a wash program is often mistaken for a controller malfunction.
We have all possible spare parts for Bosch WFF 1200 / WFF1201 / 1400 and we can repair these washing machines in case of any breakdowns.
We are also ready to purchase from you faulty washing machines of the family Bosch WFF
Replacing damaged bearings and oil seals in a Bosch washing machine. Shown is a variant of disassembling and assembling the drum.
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). Same in the second half.
The Bosch washing machine does not heat up the water, does not switch wash modes. Troubleshooting and repair.
disassemble the tank of the Bosch washing machine replacing the Bosch bearing.
Programmer Command device Control module for the washing machine. Disassembly 1 part.
the machine worked for 15 years, the programmer began to junk, 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 can samos.
The new video is a video guide for self-repair of the BOSCH washing machine. In this.
The device of the washing machine controller (programmer). Briefly about the work of the washing 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 wringing out the laundry, suddenly begins to make strange sounds (rumbling, grinding.
In this video I will show you how to replace shock absorbers in Bosch and Siemens washing machines, in which shock absorbers are removed.
Replacing the heating element in the washing machine with your own hands.
The Bosch WFF washing machine is a legendary series of automatic machines, many of which have already served 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 in the secondary market. The repairmen recommend buying them, since the quality of the machines of the famous Bosch Wff series is the highest.
Exterior view 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 differ somewhat even within the same model. Now this is impossible. Bosch renews its line of washing machines almost every year. The units do not stay on the market for a long time. The slightest difference, improvement, revision, 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. Things were different with Bosch Wff. They appeared at a time when manufacturers wrote in the manuals "the characteristics of the model can be changed without warning."
Models WFF 1200 and 1201 were produced in 1997-2002. They turned out to be the brand's latest electromechanical control units. During all 5 years of production, the developers have been improving. Changes were made to the design of the motor, control panel, etc. One of the goals was to hang maintainability. And it succeeded. The maintenance of the series machines is inexpensive for users. And even now, after 15-20 years from the date of release, WFF machines are being successfully repaired, if required.
For medium soiled white cotton. Temperature - 90 °. Loading - maximum.
For colored cottons and other fabrics. The admissible temperature is 30-60 °. In this mode, you can also load a full tank.
A quick program for lightly soiled items. 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 water heating temperature does not exceed 30-40 °.
Finish.
For non-capricious, not too dirty laundry. Temperature - 0-60 °.
Economical washing of non-capricious linen at temperatures up to 40 °. In this mode, energy consumption is reduced due to weaker water heating and a shorter program duration. You can clean up to 2 kg in this mode.
Shortened program for lightly soiled, non-whipping laundry at temperatures up to 30 °.
For delicate woollens requiring special handling. Cleaning is done in cold water. As a result, powder detergent cannot be used. However, it is undesirable to wash woolen things in it in any case.
Reduced program for cleaning wool items.
Pumping out water. The mode is designed to remove water from the tank after stopping washing.
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.
The hatch door in the WFF 1200 opens 120 degrees
Despite the unanimous positive opinion of users about the machines of the series, they still have drawbacks. Especially when compared with modern assistants.
Having served for two decades, the WFF 1200 continues to delight the owners. There are not many reviews on the network, since at the time of the appearance of the series machines, 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.
The WFF 1200, like any modern machine, collects water in the rubber boot of the sunroof. It must be removed manually
Repairers also speak positively of 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. This is partly true. The machines 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, which are very expensive to repair. They have a lot less plastic elements. Manufacturers put a greater resource in them, since in those days the technique did not become obsolete so quickly.
The WFF series machines not only break down less often. The same 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 WFF is relatively simple and not burdensome for a wallet.
Specifications Bosch WFF 1400
Modern models are produced taking into account the rapid obsolescence. It makes no sense to put a huge resource into the equipment, if after 5-7, maximum 10 years, it ceases to meet modern requirements, for example, in terms of energy consumption.
You can't call it very quiet. The Bosch WFF washing machine runs relatively loudly during spinning. Not so much as to spoil the relationship between the owners of the machine and their neighbors, but still in this indicator it is inferior to the later models of Bosch.
As mentioned above, the Bosch WFF washing machine has a control panel in German. Therefore, despite the many advantages and low price of these second-hand machines, it is still not worth buying it for her grandmother at the dacha. Even with instructions, an elderly person, whose memory leaves much to be desired, will constantly get confused in buttons and programs.
Bosch WFF in the interior
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 for other purposes. However, the machines of not every brand can cope with washing dirty clothes, even with prolonged washing. Bosch is at its best here.
As you can see, the Bosch WFF washing machine in most parameters is not inferior to inexpensive modern models. 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 violation of the operating rules 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 must not only understand the principle of operation of the device, but also have a variety of tools, have knowledge in electronics, and be able to read electrical circuits. But everyone can carry out simple repairs. The main thing is to accurately determine the faulty unit, the self-diagnosis function built into the washing machine helps in this.
Regardless of the brand of the washing machine, the device of models from different manufacturers, be it Atlant or Bosch, practically does not differ. The main nodes include:
frame;
drum;
pump;
Control block;
heating element (heating element);
engine.
After turning on the machine and selecting a program, the pump starts pumping water into the drum through the inlet valve. The drum is a container made of stainless material with many holes along the entire surface. It is through these holes that water penetrates into the container, reaching the desired level. The water level is monitored by a pressure switch. The drum is connected via a belt drive or directly connected to the engine. According to the selected program, the engine starts its work, forcing the drum to rotate. At the front, the drum is connected to the tank via a rubber cuff.
At the end of the wash cycle, the water is drained out. The main unit of the drainage system is the drain pump. A special hose is connected to the pump outlet, through which water is drained from the device. The last stage of the machine is spinning. For its implementation, the engine begins to spin 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 the items 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 operation of the pump and the motor is controlled by an electronic unit.
The water in the device is heated using a thermoelectric element. It has the form of 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 taking place during the wash. The following sensors are used in cars:
Pressostat. It can be performed both of a mechanical type and an electronic one. Its task is to control the water level.
Thermostat. Located at the bottom of the tank and is designed to monitor the temperature of the water.
Tachometer. Measures engine speed.
Sunroof locking device. It is an electromechanical device. It informs about the opening of the hatch and blocks it when starting the wash.
If suddenly, for some reason, you need to repair your Bosch washing machine, then first of all you need to understand the nature of the malfunction. If the failure is not global, it is required to start the self-diagnosis mode. Unfortunately, not all models have it, for example, the Bosch WFF 1200 does not have it.
To start the self-test, you need to refer to the operating instructions, but most often it is used the following combination of actions:
Leaving the tank empty, close the manhole cover.
Set the program selection switch from the "Off" position to the "Spin" mode. As soon as the LEDs start blinking, you will need to press and hold the "Spin speed" button. The LED should go out and then blink again.
The program selector is set to the “Drain” position, the “Spinning speed” button is released.
Using the program selector, a node is selected to be tested. For each series of machines, the position number corresponds to its node. At the end of the test, information will be given whether it passed or not.
But most often the self-diagnosis is rather superficial and may not include checking all the components of the Bosch washing machine. The instruction manual contains only an initial description and is unlikely to help in case of a serious breakdown. Although, along with it, a service manual is also issued with a detailed description of the device and possible solutions for eliminating breakdowns. It is difficult to find it in the public domain, since it is intended for service centers.
If a superficial examination could not reveal the problem, and the operability of the system for connecting to the water supply, sewerage and electricity is not in doubt, then you will have to disassemble the machine to gain access to the faulty nodes. The main causes of malfunctioning of the Bosch washing machine can be the following factors:
Assuming the cause of the breakdown and its severity, if necessary, you will have to start disassembling the Bosch washing machine.
To disassemble the device yourself, you will need a number of tools: Phillips screwdrivers 4-6 mm, slotted 4-10 mm, wrenches 8/9 and 18/19, pliers. Disassembly begins with the removal of the protective side cover. To do this, unscrew the screws around the perimeter and pull the side cover towards you. After removing the left side panel, access to the main units of the unit opens. Having gained access to the elements of the device, you can carry out maintenance, check components or replace defective parts.
Before removing the heating element, it can be checked on site... To do this, after releasing it from the terminals, the resistance is measured with a tester, it should be about 20-50 ohms. To replace it, you need to unscrew the nut on the tightening bolt, then push on the bolt, pushing it inward. Carefully prying the outer part of the heating element with a flat screwdriver around the perimeter, remove it from the tank. It is impossible to repair the heater in the event of a coil breakage, so it will need to be replaced.
If the motor needs to be repaired, it will need to be removed. Before removing the engine, the drive belt is removed, the terminal block is disconnected, then the screws are unscrewed and the engine is removed from the runners. In the motor mechanism, you need to check the brushes. They are usually located outside the housing and are pressed tightly against the manifold. When they wear out, the power of the motor is lost, and the machine begins to malfunction. This is especially true when spinning.
One of the most common breakdowns of a washing machine pump is impeller failure... Before you start removing the pump, you can open the drain filter located on the front of the machine and clean the debris compartment, then turn the impeller by hand. If you decide to remove the pump, you will have to unscrew the plastic part that connects the pump, drain pipe and drain hose. For this, the fastening screws are unscrewed.
The most time consuming operation is removing the tank. You will need to remove the top cover. To do this, you must first empty the electronics unit. Usually it is screwed in and held by clips around the perimeter. After that, we disconnect the dispenser hopper by lifting it up and, loosening the clamp with pliers, pull out the branch pipe. Remove the top counterweight and the rest of the machine.
Practically, to remove the drum, you will need to disassemble the entire machine. There is a weak part in the tank, this is the bearing. To get to it, you need to install the tank with the oil seal up and knock out the bearing with a chisel and hammer. Modern models are produced with a cast bearing, that is, it cannot be replaced separately from the tank.
For example, one of the first machines, which appeared on sale Bosch WFC 1600 WMV 3800A / Maxx 4, has removable bearings, their replacement in it is possible, but very time consuming.
Such repairs must be carried out with special knowledge.In case of suspicion of the electronic unit, you can remove the board from the plastic container, having previously disconnected all the connectors, and carefully inspect the soldering points. Often, due to the vibration of the machine, they are destroyed. Also, if washing powders get in or in the event of a leak, a plaque may appear on the PCB board. In this case, it is recommended to rinse the board with an alcohol solution.
One of the important parts of the machine control is the programmer. Its other name is command apparatus. This detail is responsible for the selection of modes. It can be mechanical or electronic. In the case of an electronic type, a microprocessor is used. The mechanical programmer also tends to fail. Care must be taken when disassembling it, as there are springs inside. The programmer consists of a set of gears and a synchromotor. In principle, the construction of the command apparatus is rather complicated, and it should not be disassembled without experience. Particular attention should be paid to the contact group, it is often oxidized, which leads to malfunctions.
Complex mechanical devices cannot last forever, but it is possible to postpone their breakdown. To do this, observe the technical operating conditions and carry out preventive measures:
After completing the wash, leave the door open and wipe the rubber seal dry.
Clean the drain filter regularly.
To clean the heating element, periodically run a wash cycle without clothes, but with an anti-scale agent.
The electrical part of the Bosh machine, although it is made reliably, does not like voltage surges. If the power grid is of poor quality. it is better to use a stabilizer.