Error code reference

Samsung Washer Error Code dE1

Door error-door lock switch terminal connected incorrectly, broken, intermittent error due to electric wire leakage, or main PCB fault. Also switch contact error from door hook deformation or door pulled by force.

SourceSamsung Washer - Service Manual: Error Codes & Troubleshooting (WF431ABW)p. 36, 42

Diagnostic procedure

The full dE1 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
Check the door switch. Check and repair power wire connections and insulation state.

SourceSamsung Washer - Service Manual: Error Codes & Troubleshooting (WF431ABW)p. 36, 42

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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