Error code reference

Samsung Washer Error Code 8E1

MEMS sensor error: output from the MEMS sensor is over 4.5V or under 0.5V and continues for 5 seconds, indicating a sensor fault rather than normal vibration.

SourceSamsung WA400 Washer - Service Manual: Sub Board Connectors & Diagnostics

Diagnostic procedure

The full 8E1 procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
If there is no vibration and the issue remains, replace the Main PCB.

SourceSamsung WA400 Washer - Service Manual: Sub Board Connectors & Diagnostics

More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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