Bosch · Washing Machine
Bosch Washing Machine E02 Error Code
Drive motor blocked or not turning
What this error means
E02 (F02) indicates a motor fault—the control module commanded rotation but the brushless drive motor did not reach expected speed. You may hear a brief hum, then the cycle aborts before wash or spin begins.
How E02 is detected
When E02 appears on a Bosch washing machine, the control board has confirmed that water did not leave the machine within the programmed drain window. On Bosch WGG254AXUC, Bosch WAT28400UC, and similar variants, the drain pump runs for a fixed interval—often three to seven minutes on washers and dishwashers—while a pressure switch or turbidity sensor verifies the tub or sump is empty. If water remains, the cycle stops to prevent spin with a full tub or overflow on the next fill.
Most E02 calls are resolved without parts: unplug the washer for two minutes to reset the motor inverter. Restricted drain paths mimic pump failure because the impeller spins against a blocked hose or filter. Document whether the pump hums audibly during the drain step; a humming pump with no water movement points to a clogged filter or kinked hose, while silence may indicate a failed pump motor or loose wiring at the harness.
After clearing blockages, run a short cycle and listen at the drain hose for steady water flow. If E02 returns on the next load with a clean filter and straight hose, measure resistance at the pump motor connector per the service manual for your model before ordering a replacement pump assembly.
Common causes
- Overloaded drum binding the motor on heavy bedding
- Garment or coin caught between the inner drum and outer tub
- Motor tachometer wire loose at the rear stator connector
- Failed motor control module after a power surge
Step-by-step fixes
- 1Unplug the washer for two minutes to reset the motor inverter
- 2Remove several items and redistribute the load evenly around the drum
- 3With power off, rotate the drum by hand—it should turn with moderate resistance only
- 4Stop using the machine if E02 returns on a light test load after reset
When to call a technician
Motor module and tachometer diagnostics require rear-panel access and live voltage tests—schedule Bosch service if E02 repeats on an empty drum.
Affected models
- Bosch WGG254AXUC
- Bosch WAT28400UC
- Bosch WGA12400UC
Prevention & maintenance
- Clean drain filters and hose terminations monthly on high-use washing machines to prevent E02 from lint and food debris buildup.
- Record when E02 appears in the cycle and whether it clears after a 60-second power reset on your Bosch washing machine—that detail speeds diagnosis if you call service.
- Keep the model and serial number from the rating plate when ordering parts for E02; Bosch uses multiple revisions with different harness lengths and board firmware.
- Photograph wiring connector orientation before disconnecting any component while troubleshooting E02; reversed plugs on pumps and valves cause immediate repeat faults.