Details: washing machine bosch wfc 1667 oe do-it-yourself repair from a real master for the site my.housecope.com.
Washing machines from the German company Bosch have always been of high quality. Bosch products are made only of high quality materials, are ergonomic and easy to use. However, sometimes situations arise when equipment fails for one reason or another. In such cases, you can do a simple repair of the Bosch washing machine with your own hands, and in case of a serious malfunction, contact a service center.
Before repairing a Bosch washing machine, it is necessary to carry out diagnostics and establish the cause of the malfunction. For this purpose, test diagnostics are provided, performed in a specific sequence. When diagnosing a malfunction in a Bosch washing machine, the door must be closed. After that, all programs are set to the off position, and there is a pause for a few seconds.
Next, the spin mode is selected, after which the start indicator will start blinking. The spin speed change button is then pressed while the program selector is set to the drain position.
As a result, the display will display the following codes:
F16 - corresponds to a loosely closed door.
F17 and F18 - indicate problems when collecting and draining water.
F19 - means a malfunction of the heater - heating element.
F20 - possible malfunctions of the relay and the NTC temperature sensor.
F21 - the motor drive is faulty.
F23 - water leak.
F40 - input voltage is abnormal.
F63 - malfunctions in the control module.
Video (click to play).
Sometimes test diagnostics cannot be started, which most likely means not problems with components and parts, but malfunctions of the control board.
To check and confirm the malfunction of a particular code, the last displayed error must be erased from the memory of the washing machine. For this purpose, the program selector is set to a specific position.
Drive motor check - 3,
Pump check - 4,
Heating element - 5,
Valve for filling hot or cold water - 6 and 7,
Water inlet valve for the main wash - 8,
Pre-wash water inlet valve - 9,
FCW automatic testing - 12,
Rapid Automated Testing - 14.
The motor diagnostics in different Bosch washing machine models can be started in positions 3 or 4.
At the end of the diagnosis, when the malfunction is accurately established, you can purchase parts and spare parts, and then start repairing the washing machine.
The lack of water heating manifests itself primarily in a noticeable deterioration in the quality of washing. In some cases, washing may stop altogether. It is not difficult to make sure of this, it is enough to put your hand on the glass of the loading door. In normal mode, heated glass is felt, and when the temperature is violated, it is not felt at all. For all models of washing machines, you can check the drain hose and find out if the water heats up in the washing machine.
Most often, the cause of the malfunction is the failure of the heating element - the heating element. In this case, its replacement is required. The main enemy of all heating elements is considered to be low-quality water, which contains impurities and is considered hard. Often the sensor responsible for maintaining the temperature regime breaks down, and then the wash program is automatically blocked.
You can carry out the replacement work yourself. However, one should take into account the need to completely open the case of the washing machine, which not everyone can do.Therefore, if you are not completely confident in your capabilities, it is recommended to call the service center specialists.
Sometimes it can happen that the drum does not spin at all, although the water pump continues to work normally. The reason may be a drive belt torn or flying off the pulley, worn out lamellas and brushes of the electric motor, as well as the failure of the motor itself and the tacho sensor. In addition, foreign objects often get into the drum, jamming and stopping rotation.
The main cause is considered to be engine malfunctions. Before checking it, the drive belt is removed from the pulley and the wires are disconnected. On the removed engine, the rotation of the shaft is checked, the brushes are pulled out and checked. If worn, they must be replaced. If the brushes are normal, check the tachometer installed on the motor housing. This procedure is performed using a multimeter. After that, the condition of the lamellas or collector plates is checked, for which the engine housing is disassembled. At the same time, the winding itself is checked.
After checking the engine has shown the norm, you should pay attention to the drive belt. Problems can be detected if the drum is turned too lightly. In this case, the belt is either torn or severely stretched. In both cases, replacement is required, for which the back of the case is removed. The belt itself is easy to remove and replace with a new one. First, it is put on the engine pulley, and then on the drum pulley, which must be turned by hand.
The next reason is often foreign objects falling into the gap between the drum and the tank. To remove, you can use the hole for installing the heating element. For this purpose, the heating element must be unscrewed and pulled out of the hole. Then you need to highlight with a flashlight and look inside. If you find a foreign object, you need to get it out. After removal, all parts are reassembled in reverse order. If this method did not help and the item could not be removed, the Bosch washing machine will have to be disassembled completely in order to remove the tank and remove the drum from it.
Before doing repairs, you should check the presence of water in the water supply system. You also need to check the condition of the water supply valve so that it is in the open position. The water supply hose could be kinked or kinked inadvertently.
With a normal water supply, you need to look for another cause of the malfunction. First of all, you need to check the intake valve for blockages. A safety filter upstream of the inlet valve may be clogged with debris. In many cases, it is enough to just clean it, and everything will return to normal, otherwise you will have to look for more serious malfunctions.
One of them is the failure of the electronic water supply valve. In this case, the collection of water stops until the defective element is replaced. Water may not enter the machine due to a malfunction in the control module. As a result, the command to collect water is not received until the control module is reflash or replaced.
The next reason may be the failure of the pressure switch - a water level sensor that measures and controls the amount of liquid required for washing. If a breakdown occurs, the washing machine cannot quantify and washing will not start until the sensor is replaced. Sometimes water does not flow due to the failure of the hatch locking device. A defective device requires a complete replacement.
With this malfunction, the water drainage mode is noticeably violated. Draining is slow or stops altogether. Water is not drained out during all wash phases. After removing water from the tank, the spin mode can be blocked. The most common causes are a clogged pump filter and a branch pipe connecting the tank and the pump, as well as foreign objects that have got inside and jammed the pump impeller. The drain hose, siphon and sewer pipe may be clogged.
The Bosch washing machine must be disconnected from the power supply before checking and repairing. First, the filter located below the loading hatch is unscrewed. When clogged, it is cleaned and installed in its place. After that, you need to check and clean the drain pipe. To get to it, you need to disconnect the drain unit from the body. The corrugation itself is carefully felt and, if debris is present, it is cleaned. Assembly is carried out in reverse order.
If the impeller located immediately behind the filter is jammed, inspect it and remove any foreign objects that interfere with operation. The pump is checked last. When the impeller is clear of debris, but still does not rotate, this means that the pump is malfunctioning and needs to be replaced.
Sometimes, after washing, the laundry is wet or not wrung out enough. This indicates a malfunction in the spin system. The main reason, as always, is the blockage of the drain pipes, drain hose, pump filter, siphon and sewage system. This problem is solved by the usual cleaning and flushing of the clogged parts.
More serious malfunctions are considered breaks in the heating element, a malfunction of the water level switch, or a tachometer that regulates the drum speed. In all cases, replacement of defective parts is required. Mechanical reasons include the uneven distribution of the laundry in the machine. As a result, there is no smooth set of revolutions by the drum and the electronic sensor automatically cancels spinning.
Electrical problems may occur. They consist in the wear of the brushes or the malfunction of the motor itself. The most serious breakdown is considered to be a malfunction of the control module, which is either repaired or completely changed.
Sometimes your Bosch washing machine simply won't start when you press the power button. In this case, several indicators start blinking on the panel at once or they do not turn on at all.
The reasons for this condition may be as follows:
Loosely closed hatch.
Lack of power supply in the network, outlet malfunction, power surges and surges.
Defective cord or plug. It is recommended to carefully examine them for damage, burning and other defects. If faults are found, the damaged cord or plug must be replaced.
Lack of water supply to the washing machine.
If all of the above malfunctions are absent, then the cause of the malfunction is more complex, requiring more qualified diagnostics. It can be connected to a control panel or an internal electrical circuit. Most often, the programmer or electronic module does not work, as well as the noise filter and the sunroof lock device. If the reasons could not be determined on your own, you should call a qualified specialist.
Sometimes during operation, the Bosch machine begins to emit extraneous sounds. The presence of a squeak indicates friction between parts. Therefore, to determine the malfunction, it is likely that the washing machine will need to be disassembled in order to perform an inspection and diagnosis.
Worn springs used to suspend the tank are one of the main reasons. Both springs are replaced at once, since replacing only one of them will lead to uneven loading.
Another reason is related to the wear of the shock absorbers that absorb vibration. Worn parts become stretched and emit a specific squeak during machine operation. The drive belt can also be worn and become stretched and weak. This causes it to slip and squeak. Sometimes the drum is unbalanced due to a loose shaft attachment. Worn parts must be replaced, and all loose components are tightened to normal with a tool.
Today, washing machines are a common feature in apartments and private houses.Bosch washing machines are very popular, since they are made from high-quality materials using modern technologies. But even such cars can fail over time. This article will show you how to repair your Bosch washing machine with your own hands.
Modern Bosch washing machines contain a special program that allows you to identify faults without asking for help from a master.
The operating instructions for your Bosch washing machine should contain information on how to perform this diagnosis. If the drum has stopped rotating, then you must perform the following sequence of actions:
Close the door;
Set the program selection knob to the "Off" position;
Wait a couple of seconds;
The spin handle should be set to the “Spin” position;
Then wait until the "Start" button starts blinking;
Hold the "Spin RPM" button pressed;
Wait until the "Start" button flashes again;
Set the handle to the "Drain" mode;
Release the button "Spin revolutions";
Determine the last breakdown by the error code for the Bosch washing machine.
The program clears the last error from memory and runs diagnostics. To check the electric motor, set the mode selector knob to position 3.
To check the drain pump, set the knob to position 4. You can check the heating element by setting position 5. Diagnostics of the hot or cold water inlet valves is carried out by selecting positions 6 and 7. When position 8 is selected, the water inlet valve is tested during the main wash, and 9 - preliminary washing.
According to the technicians of Bosch service centers, the following breakdowns are most common:
Water does not heat up during washing;
Water does not drain;
The drum does not rotate;
The drum of the washing machine makes a noise;
Water is not collected;
The electric motor will not start.
When analyzing the malfunctions, one can come to the conclusion that in washing machines Bosch most often comes out of the standing heating element. If the heating element is broken and the electronic system is working properly, then the repair will not take much time.
However, if the electronic system is also out of order, then the repair will be quite expensive. After all, you will have to replace the electronic modules and call the master.
There are a number of reasons why a Bosch washing machine can fail. Let's consider them in turn.
She may not drain the water at the end of the wash cycle for one of the following reasons:
Clogged pump or drain filter;
Poor contact between power supply and pump;
Drain pump defective;
The water level sensor has broken.
The drum stoppage can occur for the following reasons:
The drive belt is worn out;
Malfunction of the control board or electronics;
Failure of the electric motor (rare case).
The drum may make noise during operation. This may be due to the following reasons:
Bearings came out of standing;
Small items are stuck in the drum;
The shock absorber has broken;
Counterweight problems.
It is possible that no water is drawn into the tank. In this case, the following reasons are distinguished:
Clogged Aquastop system or pump;
Lack of water in the plumbing;
Hall of the drain hose.
If the electric motor does not start, then, most likely, the door of the drum hatch is not closed or the electronics are out of order. After finding the cause of the malfunction, you can proceed with the repair.
The drain filter is located at the bottom of the machine, under a cover or panel. To clean the filter - open the cover. To do this, turn it counterclockwise. Filter - rinse and reinstall.
To clean or replace the drain pump, you must remove the front cover of your Bosch washing machine. This work is laborious, but not difficult.
Quite often, there is a malfunction in which water is not drawn into the Bosch washing machine. In this case, it is necessary to check the water supply and the water supply valve. They can be closed. Next, check if there are any kinks on the drain hose.If everything is in order, check the condition of Aquastop. If this element of the Bosch washing machine is out of order, it should be replaced with a new one.
If the water level sensor breaks down, it must be replaced. To do this, first dismantle the top cover by unscrewing the two self-tapping screws located at the back. This sensor should be located in the right corner under the cover. To pull out the water level sensor, you need to push down on the latch. Next, remove the hose and disconnect the contacts. Instead of the old sensor, a new one is mounted.
You can replace the heating element of your Bosch washing machine yourself. To do this, you need to remove the back cover of the Bosch washing machine. The heating element is located below, under the tank. To replace the heating element, proceed as follows:
Unscrew the bolt that secures the heating element to the tank.
Disconnect the wires;
Dismantle the heating element;
Install a new heating element and carry out all the steps in reverse order.
Replacing bearings on Bosch washing equipment is a rather difficult task, since for this you will need to disassemble almost the entire washing machine. Watch a video on how to replace bearings:
Stopping the motor can cause wear on the drive belt. You can replace this element yourself. To do this, you need to perform the following sequence of actions:
Open the back cover of the Bosch washing machine;
Remember how the belt is attached to the grooves of the pulley. Better to photograph this element.
Take the belt just below the pulley and gently pull it towards you.
With your free hand, turn the pulley counterclockwise.
Pull the old belt out of the washer body.
Put a new belt on the motor of the Bosch washing machine.
Tighten the belt with one hand and try to slide the drive belt onto the pulley with the other.
Turn the pulley counterclockwise without loosening the belt. In this case, you must try to put on the belt completely.
Install the housing cover of the Bosch washing machine.