Miele washing machine error code F53

The appearance of a certain combination of letters and numbers on the digital display reflects the washing machine's status, the operation of individual components, and possible process malfunctions. Error F53 on a Miele washing machine indicates a motor malfunction. The self-diagnostic system may display error F53 if the motor speed sensor is faulty, the electrical connections (brushes) are damaged, or there is a problem with the electronic control unit.

What does the code mean?

To prevent potential negative consequences, developers and manufacturers equip washing machine models with "smart" electronics (self-diagnostic systems) capable of monitoring the operation of each individual component. If the machine deviates from specified parameters, the electronic control unit displays an alphanumeric code on the digital display—an error code that provides information about the malfunction.

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

The specified code indicates that the tachometer sensor has lost connection with the control module.

If the motor doesn't turn, the problem isn't difficult to pinpoint. Try restarting the Miele machine.

Let's start with the brushes

If the self-diagnostic system repeatedly displays error F53 after restarting the washing machine (turning it off and then back on), you should check the integrity of the electrical wiring insulation, the electrical contacts, and the condition of the motor brushes. Brush wear and chipping during intensive use of Miele washing machines can lead to poor contact, which can be one of the causes of motor malfunctions.

To determine the condition of this component, it is necessary to remove the motor located at the bottom of the washing machine. To do this, remove the rear panel, the drive belt, and the mounting 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 and can be done by yourself. The wiper blades are secured with small screws. All you need is a set of screwdrivers, new wiper blades, and a little patience.

Let's look at the tachometer

What should I do if the F53 error code continues to appear on the display after replacing the brushes? The tachogenerator should be checked and, if necessary, repaired. A sudden change in speed, direction, or motor stalling is most often caused by a faulty speed sensor (tachogenerator), which is the link between the electric motor and the washing machine's electronic control system.

You'll need to remove the washing machine's wall again and dismantle the electric motor. The tachometer is located on the motor shaft, at the rear. To perform a preliminary check of the sensor's functionality, you'll need a multimeter to check the integrity of the wires located in a ring-shaped pattern inside the control sensor. This can be determined by measuring the resistance of the wires. A multimeter is required for this. The check procedure is as follows:

• disconnect the sensor connecting wires (remove the connector);
• Set the multimeter to resistance measurement mode and use the probes to close the circuit. The resistance should be within 60 ohms (optimal resistance).

A resistance deviation of no more than 20 ohms is permissible, which does not affect the functionality of the tachometer sensor. You can also check the sensor for current production when the electric motor shaft rotates. Switch the multimeter to voltage measurement mode, attach the probes to the sensor terminals, and rotate the shaft manually. If the sensor is working properly, the measurement should record the appearance of voltage within 0.2 V.

• The reliability of the sensor fastening is checked.
• If the resistance and voltage readings deviate from the specified parameters, the sensor will need to be replaced. This can be done independently.
• If all indicators are normal, then the only conclusion is that the problem lies with the electronic control unit itself. Without experience, you won't be able to fix this problem yourself. Only a professional can fix it.

The quality of Miele washing machines' original assemblies ensures trouble-free operation over a long period of use. Most unexpected breakdowns and malfunctions occur due to deviations from recommended operating procedures.

   

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