You have noticed the signs of malfunction in your Bosch washing machine? The washing machine displays the error code E02 on the display screen which signifies an issue with the motor. After the washing program starts, the drum does not rotate or the program does not start at all.
What should a typical user do and how should he/she solve the problem? You can call a serviceman, or you can try to fix the problem yourself.
What does the error E02 indicate: troubleshooting options
It is possible to try to solve the problem without interfering with the mechanism of the washing machine. Follow these steps:
- Check if the voltage is OK. If not, you may need the help of an electrician.
- Unplug the machine for 15-20 minutes from the power supply. If the reset helps to get rid of the error E02, then the failure was caused by the electronic controller.
If the recommendations did not help to fix the error, then you will need to identify the breakdown and make repairs.
Causes of breakage and repair
Motor is an important part of a washing machine. It makes the drum rotate during washing. Therefore, if you do not solve the problem, you will not be able to use your washing machine in the future.
However, the cause of the failure might not be related to the motor itself.
Wear and tear of brushes
80% of all the breakdowns of error E02 have to do with carbon brushes of the electric motor.
How to fix the breakage if error E02 is displayed:
- Unplug your washing machine.
- Disassemble your Bosch washing machine.
- The motor is located at the bottom, under the drum.
- Remove the drive belt and disconnect the motor wires.
- Loosen the screws that secure the motor.
- Remove the motor, disconnect carbon brush contacts.
- Remove the brushes. If they are almost or completely worn, they need to be replaced.
Rotor bearing failure
If you hear a noise during the spin or notice a leak in the drum, the cause may hide in the water that got into the bearing of the rotor.
How to solve the problem and reset the error:
- Install a new electric motor in your Bosch washing machine.
- Remove the motor, take out the rotor. Remove the protective cover from the bearings. Clean and grease the bearing.
- Completely replace the bearing.
Deformation of the rotor axis is a quite common failure. In this case, the user can hear rumbling sounds when the motor rotates.
It is necessary to install a new rotor.
Hall effect sensor failure
Hall effect sensor controls the speed of the drum rotation.
The signs indicating Hall effect sensor malfunction: the drum rotates abnormally quickly, then it stops and displays error E02.
If you notice such a “behavior” in the Bosch washing machine, then you need to check the sensor with a multimeter. The resistance of 70 ohms is considered normal – in this case, the device works properly. If the device is broken, it needs to be replaced.
The last thing to check is the motor itself. You will need to use a multimeter, which should normally display 1 to 7 ohms.