Modern washing machines are able to independently recognize and identify malfunctions arising in them. Self-diagnosis systems have reached such a development that the difficulty with the operation of an electrical device is recognized in the process of its occurrence, and does not allow it to develop to a critical state. Although each manufacturer has its own self-diagnosis system. And the principle of work is approximately the same for everyone.
The self-diagnosis system is designed so that when a malfunction occurs, a special code is displayed on the display of the washing machine. As a rule, in addition to the error code, the display no longer contains information. You need to find out exactly what kind of failure the electrical appliance reports. Of course, you don’t need to memorize all the codes and decrypt them, you just need to find the instruction manual for this machine or see the decoding in the text below.
The user is able to fix some errors in the Bosch washing machine on his own. And in some cases, professional intervention and deeper diagnosis will be required.
Errors of the Bosch washing machine. Loading door not closed
Among the mistakes of the Bosch washing machine, F01 arises, perhaps most often. This means that the loading door is not closed. The first thing to do is to check whether the hatch is tightly closed, whether there are any things sandwiched between it and the wall of the washing machine body. You should put things back in the car, close the hatch and try restarting the program. If this does not help, it is recommended to completely disconnect the washing machine from the power supply and check the voltage level in the mains, eliminate difficulties and reconnect the machine. In the event that this attempt was unsuccessful, you need to contact the master, who, when partially disassembling the Bosch machine, will check whether power is supplied to the hatch blocker.
Problem codes may vary from one model to another. So, the errors of the Bosch Max 5 washing machine differ slightly in coding. A problem with the sunroof open is indicated on the display with code F16.
No water is collected. What's the matter?
Error E17 in the Bosch washing machine appears on the display if there is no water supply to it. Quite a lot of events can serve as a cause. We indicate those that are most common in everyday practice:
- The tap for supplying water to the washing machine is closed. Often, the user simply forgets to open the faucet that he or his household blocked after the previous wash. Therefore, the first thing to do is to check the condition of the water tap.
- Little or no water pressure. Check the water pressure in any of the taps in the bathroom or in the kitchen. If the pressure in the water supply is weak or there is no water, you must contact the city utilities to clarify the reasons and time for eliminating the breakdown.
- There is no water filter. If the water filter is not installed on the pipes in the house, a filter in the form of a fine mesh is often clogged, installed at the junction of the electromagnetic valve and the set-up hose. The dirty mesh needs to be cleaned and put back in place, after which try to restart the wash.
You can’t do without a technician if all of the above points are checked, and the washing never started. A professional will open the washing machine and be able to check the power supply to the dial valve.
Code F02 is also similar to code F17. If you see an error 17 with the letter F on the screen of the Bosch washing machine, start looking for the reason for the lack of water supply.
Water does not drain
F03 indicates that no water has been drained from the machine. The Bosch washing machine automatically has a time period of 10 minutes, during which all water from the machine must be drained. If this does not happen, then similar errors occur in the Bosch washing machine. Reasons and solutions to this:
- The filter sump is clogged. At the bottom of the washing machine, we take out the filter, rinse, clean it and install it in place.
- Clogged hose or drain. We also examine everything carefully for clogging, and if it is present, we get rid of it.
- Malfunction of the drain pump. The coil in the pump must be replaced if the resistance in it becomes less than 200 ohms. Also, the impeller in the coil should freely rotate left and right.
- Damage to the electronic control unit. In this case, the drain pump is not supplied with power.
Water leak
When the Bosch washing machine generates an error with code 04, disconnect the appliance from the mains as soon as possible. This indicates that a water leak has occurred. The reason may be a violation of the sealing of the tank in the washing machine. Loosening the drain hose clamps or hose clamps can also result in water leakage during washing.
Motor failure
Error F05 indicates that the motor is faulty and starts without a command. The motor control circuit is checked and repairs are made or its complete replacement.
F18. Common problem
In the Bosch washing machine, error E18 or F18 means that the drain time has been exceeded. The reasons for this may be:
- Damage to the drain pump, as in error F03.
- The pressure switch malfunction is a water level sensor. Occurs in the event of a breakdown of the pressure switch switch, or level 1 is not reached in the pressure sensor. It is recommended to replace the sensor with a known working one and check the system.
After the pressure switch and the drain pump were checked and, if necessary, replaced, error 18 appeared again in the Bosch washing machine, the operation of the power unit should be checked. Most often, when within 90 seconds the readings of the water sensor do not change their readings, the washing program is reset and the error "important malfunction" is displayed.
Water does not heat up. Serious malfunction
Errors of the Bosch Max 5 washing machine and other models of this company with the F19 value appear on the display when the water heating system is interrupted. That is, in the allotted time in the car, the water was not heated to the desired degree. The first thing to check is the heating element. See if the ten is intact and there is no current leakage. The next thing to check is how the thermistor works and whether there is any damage to the wiring. The third reason may be insufficient voltage in the electrical network. Experts always recommend using a voltage stabilizer when operating an automatic washing machine to avoid such problems in advance. It is also necessary to check if there is a power supply to the heater. Sometimes the problem is a malfunction of the power unit and requires its replacement.
Incorrect heating of water
The code F20 can be seen on the screen of the automatic washing machine if there is heating of water that has not been included in the washing program. With this problem, the machine immediately enters the “important malfunction” mode and the wash program is reset. Drain of “incorrectly” heated water from the tank begins.
The most common problem is the malfunction of the NTC sensor. This is a sensor that monitors the temperature of water heating. It is required to install the working part and check the correct operation of the washing machine again. If the error is highlighted again, you need to check the heating enable relay. Perhaps this is the problem. Or, in the worst-case scenario, a software failure occurred.
Important breakdown
Error F21 in the Bosch washing machine is set to critical failure. It will not be possible to solve such a problem on their own, so, in any case, you will have to call a professional. What could be the malfunction:
- short circuit of triacs on motor control;
- breakdown of the tacho generator;
- malfunction of the engine reverse relay;
- engine blocking;
- drum lock;
- control board malfunction.
Most often, error 21 in the Bosch washing machine occurs when the motor does not rotate, or rotates incorrectly. The device makes several attempts to start the program. And in case of a malfunction, it completely blocks the washing program.
Water heater sensor malfunction
This means that the NTC sensor, which is responsible for heating the water, is broken. An error occurs if the water in the tank has not been heated in the time allotted for this process. The reasons for this may be different:
- NTC sensor shorted;
- there are problems with the wiring;
- Contact oxidation has occurred.
Need to change the temperature sensor. If the replacement does not resolve the error, then it is all about the power control unit. And it should also be replaced with a new one.
Water leaking into the pan
F23 is displayed on the display of the automatic washing machine when water appears in the drip tray. In this case, the washing program is automatically interrupted. The reason for this may be a water leak in the hydraulic system of the washing machine or in the tank. Check tank for leaks and replace if necessary. The second reason can be the breakdown of the aquastop, it works outside the mode of the embedded program. Accordingly, if the malfunction is beyond repair, the aquastop will have to be replaced.
Software crash
Code 40 tells the user that the automatic washing machine is not working properly. That is, a malfunction occurs during the entire washing program. The steps and cycles of washing occur with a temporary malfunction and critical violations. There are two main reasons:
- A power surge has occurred. Check the mains voltage, if possible, connect the stabilizer and start the washing program again.
- There was a malfunction on the control module board. The module must be replaced, and the board must be thoroughly inspected and repaired.
Error 59
The numbers 59 on the display of the Bosch automatic washing machine give a signal that the number of turns in the washing process does not match the one laid down in the system. This can mean, as an excess of the number of revolutions, and, conversely, their insufficient number. The reasons for this may be a malfunction in the 3D sensor or damage to the wiring. Other reasons may lie in the malfunctioning of the processor or the washing machine program itself. When diagnosing in a Bosch machine, the wiring is first checked for damage, breaks, and integrity. Then they look at the state in which all the above sensors are located, and in what position the magnet is located.
Control Module Failure
Error F63 indicates that there is a problem in functional protection. And, more precisely - a breakdown in the control module. Try restarting the wash process. If this does not work, you need to call a specialist and be prepared for the fact that, most likely, you need to replace the control module.
This list contains the most common Bosch washing machine errors that may occur during operation. It happens that when a simple malfunction occurs, you still have to call a specialist. This indicates that not one problem was hidden behind the code on the display, but several at once.
You should not try to repair the washing machine yourself, if you are not a specialist. Inept actions can only exacerbate the situation. Automatic washing machines are a very expensive equipment, therefore it is worth approaching its operation and repair constructively and with responsibility.