Error F53 on a Miele washing machine

The appearance on the digital display of a certain combination of letters and numbers reflects the condition of the washing machine, the functioning of individual elements, and possible violations of the technological process. Error F53 on a Miele washing machine indicates incorrect operation of the electric motor. The reason that the self-diagnosis system displays error F53 may be a malfunction of the motor shaft speed control sensor, a violation of the integrity of the electrical connections (brushes), or problems with the electronic control unit.

What does the code mean?

To prevent possible negative consequences, developers and manufacturers equip washing machine models with “smart” electronics (self-diagnosis system) capable of monitoring the operation of each individual element. In case of deviation from the regulated parameters, the electronic control unit displays an alphanumeric combination on the digital display - an error code, which reflects information about problems.

This information, a detailed explanation of which is indicated in the attached operating instructions, helps the owner of the washing machine or a service center specialist determine the possible causes of problems.

Based on the indicated code, it can be understood that the tachometer has lost communication with the control module.

If the motor does not spin, then the problem is not difficult to localize. Try restarting your Miele machine.

Let's start with the brushes

If, after rebooting the washing machine (switching off, switching on), the self-diagnosis system repeatedly displays error F53, you should check the integrity of the electrical wiring insulation, electrical contacts and the condition of the motor brushes.Wear of brushes during intensive operation of Miele washing machines, the formation of chips, is the cause of poor-quality contact, which may be one of the reasons for interruptions in the operation of the electric motor. changing engine brushes

In order to determine the condition of this component, it is necessary to dismantle the motor located at the bottom of the washing machine. To do this, remove the back wall, remove the drive belt, and unscrew the fastening bolts. You can determine the degree of wear of the brushes visually by removing them from the socket on the motor housing. The replacement process is simple. This can be done with your own hands. The brushes are fastened using small bolts. All you need for replacement is a set of screwdrivers, new brushes and a little patience.

We look at the tachometer

What should I do if, after replacing the brushes, error code F53 continues to appear on the display? You will have to check the tachometer and, if necessary, repair the damage. A sharp change in rotation speed, direction of rotation, or engine stopping is most often associated with a malfunction of the rotation speed control sensor (tachogenerator), which is the connecting link between the electric motor and the electronic control system for the operating modes of the washing machine.

It will be necessary to remove the wall of the washing machine again and dismantle the electric motor. The tachometer is located on the engine shaft, in the rear part. To preliminary check the serviceability of the sensor, you will need a multimeter to check the integrity of the wires located in a ring shape inside the control sensor. This can be determined by measuring the resistance of conductors. For this you will need a multimeter. The verification procedure is as follows:

disconnect the connecting wires of the sensor (remove the connector);
The multimeter is set to resistance measurement mode and using the probes, the circuit is closed. The resistance should be within 60 ohms (optimal resistance).

Resistance deviation up or down is allowed no more than 20 ohms, which does not affect the functionality of the tachometer. Additionally, you can check the sensor for current generation when the motor shaft rotates. Having switched the multimeter to voltage measurement mode and installed the probes on the sensor terminals, rotate the shaft manually. If the sensor is working properly, the measurement should record the appearance of a voltage within 0.2 V.

The reliability of the sensor is checked.
If the resistance and voltage readings deviate from the specified parameters, the sensor will have to be replaced. You can do this yourself.
If all indicators are normal, then we can only conclude that the problem is in the electronic control unit itself. Without experience, you won’t be able to fix this problem yourself. Only a professional can fix everything.

The quality of the original assemblies of Miele washing machines allows us to ensure trouble-free operation of these products over a long period of operation. Most unexpected breakdowns and malfunctions occur due to deviations from recommended operating conditions.