Washer shows E51; motor power stage fault

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.

Possible Causes

Shorted motor windings, Shorted motor triac on PCB, Damaged motor harness, Inverter module failure (on brushless models)

Safety first: Unplug the washer. High voltages are present on motor control circuits.

Steps to check and address E51:

Inspect motor and wiring: Remove rear panel, check motor connector and harness for damage or burning.
Test motor windings: Measure resistance between motor terminals and to earth. Replace motor if windings are shorted.

When to call a technician: PCB or inverter repairs require specialist skills and should be handled by an authorized Siemens service center.

Professional Required 5/5

Drive Motor Assembly

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