What does the Bosch E02 error code mean?
E02 relates to the motor control system. The machine’s PCB (control board) is not receiving the expected signals back from the motor. This can be caused by worn motor carbon brushes, a wiring fault between the board and motor, or in some cases a failed motor control module.
How to fix the Bosch E02 error code
- Unplug the machine. Do not operate it with this error active.
- Check if the drum can be rotated freely by hand through the open door. Heavy resistance or grinding suggests a bearing problem rather than the motor.
- Carbon brushes are the most common culprit — they wear down over years of use. They sit on either side of the motor and are accessible after removing the back panel. If they are shorter than 5mm, they need replacing.
- Replacement brushes typically cost £6–£10 for a pair and clip in without tools.
- If brushes are fine, inspect the wiring loom between the motor and control board for damage, loose connectors, or burn marks.
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