What this error means
The E02 error code on your Bosch washing machine indicates a motor control fault — the electronic module that controls the motor has detected a problem and stopped the machine.
The E02 error points to a fault with the motor control unit (MCU) or the communication between the MCU and the main control board. The motor control unit is the electronic module responsible for managing the speed and direction of the motor throughout a wash cycle. When a fault is detected in this circuit, the machine stops to prevent damage to the motor or other components. E02 can be caused by a temporary power surge or fluctuation, a failing motor control board, a wiring fault between the control board and the motor, worn motor brushes (on machines with brush motors), or in some cases a partially seized motor. A power reset should always be the first step as this code can occasionally appear after a power cut or voltage spike.
Step-by-step
Symptoms to look for
- E02 displayed on the control panel
- Drum not rotating or rotating then stopping unexpectedly
- Machine stops mid-cycle during the wash or spin phase
- Grinding or unusual noise during drum rotation
- Machine makes a humming sound but drum does not turn
Diagnostic steps
Unplug the machine from the wall socket. Wait at least 5 full minutes — not just a few seconds. This ensures the motor control board fully powers down and resets its internal memory. Plug back in and retry the cycle.
Plug a different household appliance into the same socket to confirm it is supplying a steady voltage. If other appliances also behave erratically from that socket, there may be a wiring issue in your home that should be inspected by an electrician. Using an extension lead or a socket with a built-in surge protector can help protect the machine from voltage spikes.
Open the machine door (hold the start button for 3–5 seconds to unlock if the door is stuck mid-cycle, or wait for it to unlock automatically after the machine has been off for a minute). Remove some items if the drum was full. An overloaded drum forces the motor to work much harder than it should and can trigger E02 as a protective measure. As a guide, the drum should be no more than three-quarters full.
After the power reset, restart a simple programme such as a rinse-and-spin. Listen carefully when the drum should start turning. A healthy motor makes a quiet hum or low whirr. A grinding or clattering noise suggests worn motor brushes or a partially seized motor. A complete silence (no noise at all from the drum) when it should be turning suggests the motor or motor control unit is not receiving the start signal.
On older Bosch machines with brush motors, worn carbon brushes are one of the most common causes of motor faults. Brushes are inexpensive (typically £5–£15 per pair) and replacing them is a moderately accessible DIY job for someone with basic appliance repair knowledge. The brushes are accessed through the back of the machine.
If E02 returns consistently after a full reset, with a normal load, on multiple programmes, there is likely a fault with the motor control board, the main PCB, or the motor itself. These components require electrical testing by a qualified engineer. Provide the engineer with your full model number (on the data plate inside the door frame) and confirm whether the drum rotates at all during the fault.
When to call an engineer
- E02 returns after a full power reset and with a normal load
- Drum not rotating at all on any programme
- Burning smell during motor operation
- Loud grinding or clicking from the motor area
- Error code persists after carbon brush replacement
Frequently asked questions
What does E02 mean on a Bosch washing machine?
Can a power cut cause E02 on a Bosch washing machine?
Is E02 on a Bosch washing machine a serious fault?
Can I fix E02 on a Bosch washing machine myself?
How long does it take to fix a Bosch E02 motor fault?
🎯 What is most likely causing your Bosch E02 error?
⚠️ Estimates based on common faults — not a guaranteed diagnosis. Always verify before ordering parts.
Parts you may need
Enter your model number to filter results to your exact machine
Usually found on a label inside the door frame or on the back panel of the machine.
| Part | Approx. UK Cost | Find it |
|---|---|---|
| Motor Carbon Brushes | £5 - £20 | 🛒 Amazon UK → |
| Motor Carbon Brushes | £15 - £20 | 🏷️ eBay UK → |
ℹ️ Prices are approximate. Always check the part number matches your model before ordering. Not sure of your model number? Find out how to locate it here.