3E4
Samsung
Motor Control Circuit Error
Washer displays 3E4; motor control error detected by PCB.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Internal inverter failure, Shorted motor winding, PCB component damage
How to Fix / Troubleshooting
Safety: Unplug the washer.
- Test motor windings: Use a multimeter to check resistance between motor phases. Replace the drive motor if readings are not equal.
- Replace inverter PCB: If motor is good, replace the inverter or main control board.
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Repair Difficulty
Professional Required
5/5
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