Problem: Motor control module communication failure or speed sensor fault
How to Fix Washer Error
- Power cycle washer by unplugging for 2 minutes.
- Access motor control unit (MCU) located under tub near motor.
- Inspect all connectors at MCU for corrosion, bent pins, or loose seating.
- Check motor speed sensor wiring harness for damage near motor shaft.
- Measure resistance at motor windings (should be 4-6 ohms between any two terminals).
- Verify 120V AC reaches MCU during operation.
- If wiring checks good but error persists, replace MCU W10312695 first.
- If F03 returns after MCU replacement, replace main control board (CCU) W
- Run diagnostic mode to verify motor operation at multiple speeds.
Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.










